Request 3832 (accepted)

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Request 3832 (accepted)

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Created by Aloysius almost 7 years ago
In state accepted
Package maintainer: Aloysius

Submit bento4

Submit package home:Aloysius:branches:Multimedia / bento4 to package Multimedia / bento4

bento4.changes Changed

bento4.spec Changed

bento4-1.5.0r614.tar.gz/Documents/Websites/www.bok.net/dash/players/html5/presets.js -> bento4-1.5.0r615.tar.gz/Documents/Websites/www.bok.net/dash/players/html5/presets.js Changed

@@ -17,59 +17,59 @@
         emeConfig: 'manual'
     },
     {
-        title: 'Guido Bunny WV',
-        url: 'https://s3.amazonaws.com/exp.tutorial/output_bunny/stream.mpd',
-        licenseUrl: 'https://wv.test.expressplay.com/hms/wv/rights/?ExpressPlayToken=AQAAAw3paOwAAABQTIL_9kQ0ovZm4rsIOjZosklIDNdmy4olq4L9ivYyzS5RiMqVyPhTQT4Z2lWqQskU4Kn9Lno4H-pQSbJ8NxQiyB3Sb-w0OGBLhYlz29DiPoP8wTJginn-6qHfMsbxv5_03U5FMg',
-        emeConfig: 'license-url'
-    },
-    {
-        title: 'Local Bunny ClearKey',
-        url: 'http://192.168.1.199:8081/bunny_wv/stream.mpd',
-        kid: '12341234123412341234123412341234',
-        key: '43215678123412341234123412341234',
+        title: 'Local Test, CENC, ClearKey',
+        url: 'http://localhost:8081/clearkey_cenc/stream.mpd',
+        kid: '000102030405060708090a0b0c0d0e0f',
+        key: '00112233445566778899aabbccddeeff',
         emeConfig: 'manual'
     },
     {
-        title: 'Local Bunny WV',
-        url: 'http://192.168.1.199:8081/bunny_wv/stream.mpd',
-        licenseUrl: 'https://wv.test.expressplay.com/hms/wv/rights/?ExpressPlayToken=AQAAAw3paOwAAABQTIL_9kQ0ovZm4rsIOjZosklIDNdmy4olq4L9ivYyzS5RiMqVyPhTQT4Z2lWqQskU4Kn9Lno4H-pQSbJ8NxQiyB3Sb-w0OGBLhYlz29DiPoP8wTJginn-6qHfMsbxv5_03U5FMg',
-        emeConfig: 'license-url'
+        title: 'Local Test, CBC1, ClearKey',
+        url: 'http://localhost:8081/clearkey__cbc1/stream.mpd',
+        kid: '000102030405060708090a0b0c0d0e0f',
+        key: '00112233445566778899aabbccddeeff',
+        emeConfig: 'manual'
     },
     {
-        title: 'Local Bunny WV - Video Only',
-        url: 'http://192.168.1.199:8081/bunny_video_wv/stream.mpd',
-        licenseUrl: 'https://wv.test.expressplay.com/hms/wv/rights/?ExpressPlayToken=AQAAAw3paOwAAABQTIL_9kQ0ovZm4rsIOjZosklIDNdmy4olq4L9ivYyzS5RiMqVyPhTQT4Z2lWqQskU4Kn9Lno4H-pQSbJ8NxQiyB3Sb-w0OGBLhYlz29DiPoP8wTJginn-6qHfMsbxv5_03U5FMg',
-        emeConfig: 'license-url'
+        title: 'Local Test, CENS, ClearKey',
+        url: 'http://localhost:8081/clearkey__cens/stream.mpd',
+        kid: '000102030405060708090a0b0c0d0e0f',
+        key: '00112233445566778899aabbccddeeff',
+        emeConfig: 'manual'
     },
     {
-        title: 'Local Bunny WV - FFMPEG',
-        url: 'http://192.168.1.199:8081/bunny_ff_wv/stream.mpd',
-        licenseUrl: 'https://wv.test.expressplay.com/hms/wv/rights/?ExpressPlayToken=AQAAAw3paOwAAABQTIL_9kQ0ovZm4rsIOjZosklIDNdmy4olq4L9ivYyzS5RiMqVyPhTQT4Z2lWqQskU4Kn9Lno4H-pQSbJ8NxQiyB3Sb-w0OGBLhYlz29DiPoP8wTJginn-6qHfMsbxv5_03U5FMg',
-        emeConfig: 'license-url'
+        title: 'Local Test, CBCS, ClearKey',
+        url: 'http://localhost:8081/clearkey__cbcs/stream.mpd',
+        kid: '000102030405060708090a0b0c0d0e0f',
+        key: '00112233445566778899aabbccddeeff',
+        emeConfig: 'manual'
     },
     {
-        title: 'Local Sintel ClearKey',
-        url: 'http://192.168.1.199:8081/sintel_wv/stream.mpd',
-        kid: '12341234123412341234123412341234',
-        key: '43215678123412341234123412341234',
+        title: 'Local Test, CENC, Widevine',
+        url: 'http://localhost:8081/widevine_cenc/stream.mpd',
+        kid: '90351951686b5e1ba222439ecec1f12a',
+        key: '0a237b0752cbf1a827e2fecfb87479a2',
         emeConfig: 'manual'
     },
     {
-        title: 'Local Sintel WV',
-        url: 'http://192.168.1.199:8081/sintel_wv/stream.mpd',
-        licenseUrl: 'https://wv.test.expressplay.com/hms/wv/rights/?ExpressPlayToken=AQAAAw3paOwAAABQTIL_9kQ0ovZm4rsIOjZosklIDNdmy4olq4L9ivYyzS5RiMqVyPhTQT4Z2lWqQskU4Kn9Lno4H-pQSbJ8NxQiyB3Sb-w0OGBLhYlz29DiPoP8wTJginn-6qHfMsbxv5_03U5FMg',
-        emeConfig: 'license-url'
+        title: 'Local Test, CBC1, Widevine',
+        url: 'http://localhost:8081/widevine_cbc1/stream.mpd',
+        kid: '90351951686b5e1ba222439ecec1f12a',
+        key: '0a237b0752cbf1a827e2fecfb87479a2',
+        emeConfig: 'manual'
     },
     {
-        title: 'Local Mango WV',
-        url: 'http://192.168.1.199:8081/tears_wv/stream.mpd',
-        licenseUrl: 'https://wv.test.expressplay.com/hms/wv/rights/?ExpressPlayToken=AQAAAw3paOwAAABQTIL_9kQ0ovZm4rsIOjZosklIDNdmy4olq4L9ivYyzS5RiMqVyPhTQT4Z2lWqQskU4Kn9Lno4H-pQSbJ8NxQiyB3Sb-w0OGBLhYlz29DiPoP8wTJginn-6qHfMsbxv5_03U5FMg',
-        emeConfig: 'license-url'
+        title: 'Local Test, CENS, Widevine',
+        url: 'http://localhost:8081/widevine_cens/stream.mpd',
+        kid: '90351951686b5e1ba222439ecec1f12a',
+        key: '0a237b0752cbf1a827e2fecfb87479a2',
+        emeConfig: 'manual'
     },
     {
-        title: 'Local Bunny PR',
-        url: 'http://192.168.1.199:8081/bunny_pr/stream.mpd',
-        licenseUrl: 'http://pr.test.expressplay.com/playready/RightsManager.asmx?ExpressPlayToken=AQAAAw3pWq4AAABg6n4MVsv33YnWphWSMTHOCPWrKJmUxfMbfQ6Q8OaxvdWo5cuBvYZADKNNUG9gO45Y9IBO2VZk1PU7YQBr-_jE4hBswX6U0iHTZO2lw7dkcprR2eaP-X0dv7hcfkWhshL51vKV-ibDwSPJx5Or-5F-eZqAyWc',
-        emeConfig: 'license-url'
+        title: 'Local Test, CBCS, Widevine',
+        url: 'http://localhost:8081/widevine_cbcs/stream.mpd',
+        kid: '90351951686b5e1ba222439ecec1f12a',
+        key: '0a237b0752cbf1a827e2fecfb87479a2',
+        emeConfig: 'manual'
     }
 ];

bento4-1.5.0r614.tar.gz/Documents/Websites/www.bok.net/dash/players/html5/shaka-player/app.js -> bento4-1.5.0r615.tar.gz/Documents/Websites/www.bok.net/dash/players/html5/shaka-player/app.js Changed

bento4-1.5.0r614.tar.gz/Documents/Websites/www.bok.net/dash/players/html5/shaka-player/index.html -> bento4-1.5.0r615.tar.gz/Documents/Websites/www.bok.net/dash/players/html5/shaka-player/index.html Changed

bento4-1.5.0r614.tar.gz/Source/C++/Apps/Mp42Hls/Mp42Hls.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Apps/Mp42Hls/Mp42Hls.cpp Changed

bento4-1.5.0r614.tar.gz/Source/C++/Apps/Mp4Fragment/Mp4Fragment.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Apps/Mp4Fragment/Mp4Fragment.cpp Changed

@@ -202,6 +202,7 @@
     AP4_Ordinal   m_FragmentIndex;
     AP4_Sample    m_Sample;
     AP4_UI64      m_Timestamp;
+    AP4_UI64      m_UnscaledTimestamp;
     bool          m_Eos;
     AP4_TfraAtom* m_Tfra;
 };
@@ -215,6 +216,7 @@
     m_SampleIndex(0),
     m_FragmentIndex(0),
     m_Timestamp(0),
+    m_UnscaledTimestamp(0),
     m_Eos(false),
     m_Tfra(new AP4_TfraAtom(0))
 {
@@ -571,7 +573,7 @@
         
         // emit a fragment for the selected track
         if (Options.verbosity > 1) {
-            printf("fragment: track ID %d ", cursor->m_Track->GetId());
+            printf("fragment: track ID %d\n", cursor->m_Track->GetId());
         }
 
         // decide which sample description index to use
@@ -608,8 +610,7 @@
             AP4_TfdtAtom* tfdt = new AP4_TfdtAtom(1, cursor->m_Timestamp + (AP4_UI64)(Options.tfdt_start * (double)cursor->m_Track->GetMediaTimeScale()));
             traf->AddChild(tfdt);
         }
-        AP4_UI32 trun_flags = AP4_TRUN_FLAG_DATA_OFFSET_PRESENT     |
-                              AP4_TRUN_FLAG_SAMPLE_DURATION_PRESENT |
+        AP4_UI32 trun_flags = AP4_TRUN_FLAG_DATA_OFFSET_PRESENT |
                               AP4_TRUN_FLAG_SAMPLE_SIZE_PRESENT;
         AP4_UI32 first_sample_flags = 0;
         if (cursor->m_Track->GetType() == AP4_Track::TYPE_VIDEO) {
@@ -626,9 +627,11 @@
         fragments.Add(fragment);
         
         // add samples to the fragment
-        unsigned int                   sample_count = 0;
+        unsigned int sample_count = 0;
         AP4_Array<AP4_TrunAtom::Entry> trun_entries;
         fragment->m_MdatSize = AP4_ATOM_HEADER_SIZE;
+        AP4_UI32 constant_sample_duration = 0;
+        bool all_segment_durations_equal = true;
         for (;;) {
             // if we have one non-zero CTS delta, we'll need to express it
             if (cursor->m_Sample.GetCtsDelta()) {
@@ -638,11 +641,13 @@
             // add one sample
             trun_entries.SetItemCount(sample_count+1);
             AP4_TrunAtom::Entry& trun_entry = trun_entries[sample_count];
-            trun_entry.sample_duration                = timescale?
-                                                        (AP4_UI32)AP4_ConvertTime(cursor->m_Sample.GetDuration(),
-                                                                                  cursor->m_Track->GetMediaTimeScale(),
-                                                                                  timescale):
-                                                        cursor->m_Sample.GetDuration();
+            AP4_UI64 next_unscaled_timestamp = cursor->m_UnscaledTimestamp+cursor->m_Sample.GetDuration();
+            AP4_UI64 next_scaled_timestamp   = timescale?
+                                               AP4_ConvertTime(next_unscaled_timestamp,
+                                                               cursor->m_Track->GetMediaTimeScale(),
+                                                               timescale):
+                                               next_unscaled_timestamp;
+            trun_entry.sample_duration                = (AP4_UI32)(next_scaled_timestamp-cursor->m_Timestamp);
             trun_entry.sample_size                    = cursor->m_Sample.GetSize();
             trun_entry.sample_composition_time_offset = timescale?
                                                         (AP4_UI32)AP4_ConvertTime(cursor->m_Sample.GetCtsDelta(),
@@ -655,8 +660,20 @@
             fragment->m_MdatSize += trun_entry.sample_size;
             fragment->m_Duration += trun_entry.sample_duration;
             
+            // check if the durations are all the same
+            if (all_segment_durations_equal) {
+                if (constant_sample_duration == 0) {
+                    constant_sample_duration = trun_entry.sample_duration;
+                } else {
+                    if (constant_sample_duration != trun_entry.sample_duration) {
+                        all_segment_durations_equal = false;
+                    }
+                }
+            }
+            
             // next sample
-            cursor->m_Timestamp += trun_entry.sample_duration;
+            cursor->m_UnscaledTimestamp = next_unscaled_timestamp;
+            cursor->m_Timestamp         = next_scaled_timestamp;
             result = cursor->SetSampleIndex(cursor->m_SampleIndex+1);
             if (AP4_FAILED(result)) {
                 fprintf(stderr, "ERROR: failed to get sample %d (%d)\n", cursor->m_SampleIndex+1, result);
@@ -673,10 +690,19 @@
                 break; // done with this fragment
             }
         }
-        if (Options.verbosity > 1) {
+        if (Options.verbosity > 2) {
             printf(" %d samples\n", sample_count);
+            printf(" constant sample duration: %s\n", all_segment_durations_equal?"yes":"no");
         }
-                
+        
+        // update the 'trun' flags if needed
+        if (all_segment_durations_equal) {
+            tfhd->SetDefaultSampleDuration(constant_sample_duration);
+            tfhd->UpdateFlags(tfhd->GetFlags() | AP4_TFHD_FLAG_DEFAULT_SAMPLE_DURATION_PRESENT);
+        } else {
+            trun->SetFlags(trun->GetFlags() | AP4_TRUN_FLAG_SAMPLE_DURATION_PRESENT);
+        }
+        
         // update moof and children
         trun->SetEntries(trun_entries);
         trun->SetDataOffset((AP4_UI32)moof->GetSize()+AP4_ATOM_HEADER_SIZE);

bento4-1.5.0r614.tar.gz/Source/C++/Apps/Mp4Info/Mp4Info.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Apps/Mp4Info/Mp4Info.cpp Changed

@@ -40,13 +40,19 @@
 /*----------------------------------------------------------------------
 |   constants
 +---------------------------------------------------------------------*/
-#define BANNER "MP4 File Info - Version 1.3.3\n"\
+#define BANNER "MP4 File Info - Version 1.3.4\n"\
                "(Bento4 Version " AP4_VERSION_STRING ")\n"\
-               "(c) 2002-2015 Axiomatic Systems, LLC"
+               "(c) 2002-2017 Axiomatic Systems, LLC"
  
 /*----------------------------------------------------------------------
 |   globals
 +---------------------------------------------------------------------*/
+typedef struct {
+    AP4_UI64 sample_count;
+    AP4_UI64 duration;
+    double   bitrate;
+} MediaInfo;
+
 typedef enum {
     TEXT_FORMAT,
     JSON_FORMAT
@@ -964,12 +970,11 @@
 }
 
 /*----------------------------------------------------------------------
-|   ComputeBitrate
+|   ScanMedia
 +---------------------------------------------------------------------*/
-static double
-ComputeBitrate(AP4_Movie& movie, AP4_Track& track, AP4_ByteStream& stream)
+static void
+ScanMedia(AP4_Movie& movie, AP4_Track& track, AP4_ByteStream& stream, MediaInfo& info)
 {
-    double   bitrate = 0.0;
     AP4_UI64 total_size = 0;
     AP4_UI64 total_duration = 0;
     
@@ -979,6 +984,8 @@
     AP4_LinearReader reader(movie, &stream);
     reader.EnableTrack(track.GetId());
     
+    info.sample_count = 0;
+    
     AP4_Sample sample;
     if (movie.HasFragments()) {
         AP4_DataBuffer sample_data;
@@ -988,11 +995,13 @@
             if (AP4_SUCCEEDED(result)) {
                 total_size += sample.GetSize();
                 total_duration += sample.GetDuration();
+                ++info.sample_count;
             } else {
                 break;
             }
         }
     } else {
+        info.sample_count = track.GetSampleCount();
         for (unsigned int i=0; i<track.GetSampleCount(); i++) {
             if (AP4_SUCCEEDED(track.GetSample(i, sample))) {
                 total_size += sample.GetSize();
@@ -1000,13 +1009,14 @@
         }
         total_duration = track.GetMediaDuration();
     }
+    info.duration = total_duration;
     
     double duration_ms = (double)AP4_ConvertTime(total_duration, track.GetMediaTimeScale(), 1000);
     if (duration_ms) {
-        bitrate = 8.0*1000.0*(double)total_size/duration_ms;
+        info.bitrate = 8.0*1000.0*(double)total_size/duration_ms;
+    } else {
+        info.bitrate = 0.0;
     }
-    
-    return bitrate;
 }
 
 /*----------------------------------------------------------------------
@@ -1053,7 +1063,14 @@
     printf("    duration:     %lld (media timescale units)\n", track.GetMediaDuration());
     printf("    duration:     %d (ms)\n", (AP4_UI32)AP4_ConvertTime(track.GetMediaDuration(), track.GetMediaTimeScale(), 1000));
     if (!fast) {
-        printf("    bitrate (computed): %.3f Kbps\n", (float)ComputeBitrate(movie, track, stream)/1000.0);
+        MediaInfo media_info;
+        ScanMedia(movie, track, stream, media_info);
+        printf("    bitrate (computed): %.3f Kbps\n", media_info.bitrate/1000.0);
+        if (movie.HasFragments()) {
+            printf("    sample count with fragments: %lld\n", media_info.sample_count);
+            printf("    duration with fragments:     %lld\n", media_info.duration);
+            printf("    duration with fragments:     %d (ms)\n", (AP4_UI32)AP4_ConvertTime(media_info.duration, track.GetMediaTimeScale(), 1000));
+        }
     }
     if (track.GetWidth()  || track.GetHeight()) {
         printf("  display width:  %f\n", (float)track.GetWidth()/65536.0);
@@ -1141,8 +1158,17 @@
     printf("    \"duration\":%lld,\n", track.GetMediaDuration());
     printf("    \"duration_ms\":%d", (AP4_UI32)AP4_ConvertTime(track.GetMediaDuration(), track.GetMediaTimeScale(), 1000));
     if (!fast) {
+        MediaInfo media_info;
+        ScanMedia(movie, track, stream, media_info);
         printf(",\n");
-    printf("    \"bitrate\":%.3f\n", (float)ComputeBitrate(movie, track, stream)/1000.0);
+        printf("    \"bitrate\":%.3f", media_info.bitrate/1000.0);
+        if (movie.HasFragments()) {
+            printf(",\n");
+            printf("    \"sample_count_with_fragments\":%lld,\n", media_info.sample_count);
+            printf("    \"duration_with_fragments\":%lld,\n", media_info.duration);
+            printf("    \"duration_with_fragments_ms\":%d", (AP4_UI32)AP4_ConvertTime(media_info.duration, track.GetMediaTimeScale(), 1000));
+        }
+        printf("\n");
     } else {
         printf("\n");
     }
@@ -1259,13 +1285,19 @@
                 break;
         }
     }
+    
+    if (Options.format == JSON_FORMAT) {
+        printf("],\n");
+    }
+
+    // fast-start
     switch (Options.format) {
         case TEXT_FORMAT:
-            printf("\n");
+            printf("  fast start:       %s\n\n", file.IsMoovBeforeMdat() ? "yes" : "no");
             break;
             
         case JSON_FORMAT:
-            printf("]\n},\n");
+            printf("  \"fast_start\":%s\n},\n", file.IsMoovBeforeMdat() ? "true" : "false");
             break;
     }
 }
@@ -1535,7 +1567,6 @@
     if (Options.format == JSON_FORMAT) printf("{\n");
     
     AP4_File* file = new AP4_File(*input, true);
-    input->Release();
     ShowFileInfo(*file);
 
     AP4_Movie* movie = file->GetMovie();
@@ -1576,6 +1607,7 @@
     
     if (Options.format == JSON_FORMAT) printf("}\n");
 
+    input->Release();
     delete file;
 
     return 0;

bento4-1.5.0r614.tar.gz/Source/C++/Codecs/Ap4AvcParser.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Codecs/Ap4AvcParser.cpp Changed

@@ -263,7 +263,9 @@
 |   AP4_AvcFrameParser::ParseSPS
 +---------------------------------------------------------------------*/
 AP4_Result
-AP4_AvcFrameParser::ParseSPS(const unsigned char* data, unsigned int data_size, AP4_AvcSequenceParameterSet& sps)
+AP4_AvcFrameParser::ParseSPS(const unsigned char*         data,
+                             unsigned int                 data_size,
+                             AP4_AvcSequenceParameterSet& sps)
 {
     sps.raw_bytes.SetData(data, data_size);
     AP4_DataBuffer unescaped(data, data_size);
@@ -404,7 +406,9 @@
 |   AP4_AvcFrameParser::ParsePPS
 +---------------------------------------------------------------------*/
 AP4_Result
-AP4_AvcFrameParser::ParsePPS(const unsigned char* data, unsigned int data_size, AP4_AvcPictureParameterSet& pps)
+AP4_AvcFrameParser::ParsePPS(const unsigned char*        data,
+                             unsigned int                data_size,
+                             AP4_AvcPictureParameterSet& pps)
 {
     pps.raw_bytes.SetData(data, data_size);
     AP4_DataBuffer unescaped(data, data_size);
@@ -497,10 +501,10 @@
 |   AP4_AvcFrameParser::ParseSliceHeader
 +---------------------------------------------------------------------*/
 AP4_Result
-AP4_AvcFrameParser::ParseSliceHeader(const AP4_UI08*               data,
-                                     unsigned int                  data_size,
-                                     unsigned int                  nal_unit_type,
-                                     AP4_AvcSliceHeader&           slice_header)
+AP4_AvcFrameParser::ParseSliceHeader(const AP4_UI08*     data,
+                                     unsigned int        data_size,
+                                     unsigned int        nal_unit_type,
+                                     AP4_AvcSliceHeader& slice_header)
 {
     AP4_DataBuffer unescaped(data, data_size);
     AP4_NalParser::Unescape(unescaped);

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4CommonEncryption.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4CommonEncryption.cpp Changed

@@ -64,60 +64,64 @@
 const unsigned int AP4_CENC_NAL_UNIT_ENCRYPTION_MIN_SIZE = 112;
 
 /*----------------------------------------------------------------------
-|   AP4_CencSampleEncrypter::~AP4_CencSampleEncrypter
-+---------------------------------------------------------------------*/
-AP4_CencSampleEncrypter::~AP4_CencSampleEncrypter()
-{
-    delete m_Cipher;
-}
-
-/*----------------------------------------------------------------------
-|   AP4_CencCtrSampleEncrypter::EncryptSampleData
+|   AP4_CencBasicSubSampleMapper::GetSubSampleMap
 +---------------------------------------------------------------------*/
 AP4_Result 
-AP4_CencCtrSampleEncrypter::EncryptSampleData(AP4_DataBuffer& data_in,
-                                              AP4_DataBuffer& data_out,
-                                              AP4_DataBuffer& /* sample_infos */)
+AP4_CencBasicSubSampleMapper::GetSubSampleMap(AP4_DataBuffer&      sample_data,
+                                              AP4_Array<AP4_UI16>& bytes_of_cleartext_data,
+                                              AP4_Array<AP4_UI32>& bytes_of_encrypted_data)
 {
-    // the output has the same size as the input
-    data_out.SetDataSize(data_in.GetDataSize());
-
     // setup direct pointers to the buffers
-    const AP4_UI08* in  = data_in.GetData();
-    AP4_UI08*       out = data_out.UseData();
+    const AP4_UI08* in = sample_data.GetData();
     
-    // setup the IV
-    m_Cipher->SetIV(m_Iv);
+    // process the sample data, one NALU at a time
+    const AP4_UI08* in_end = sample_data.GetData()+sample_data.GetDataSize();
+    while ((AP4_Size)(in_end-in) > 1+m_NaluLengthSize) {
+        unsigned int nalu_length;
+        switch (m_NaluLengthSize) {
+            case 1:
+                nalu_length = *in;
+                break;
+                
+            case 2:
+                nalu_length = AP4_BytesToUInt16BE(in);
+                break;
+                
+            case 4:
+                nalu_length = AP4_BytesToUInt32BE(in);
+                break;
+                
+            default:
+                return AP4_ERROR_INVALID_FORMAT;
+        }
 
-    // process the sample data
-    if (data_in.GetDataSize()) {
-        AP4_Size out_size = data_out.GetDataSize();
-        AP4_Result result = m_Cipher->ProcessBuffer(in, data_in.GetDataSize(), out, &out_size, false);
-        if (AP4_FAILED(result)) return result;
-    }
-    
-    // update the IV
-    if (m_IvSize == 16) {
-        unsigned int block_count = (data_in.GetDataSize()+15)/16;
-        AP4_UI64 counter = AP4_BytesToUInt64BE(&m_Iv[8]);
-        AP4_BytesFromUInt64BE(&m_Iv[8], counter+block_count);
-    } else if (m_IvSize == 8){
-        AP4_UI64 counter = AP4_BytesToUInt64BE(&m_Iv[0]);
-        AP4_BytesFromUInt64BE(&m_Iv[0], counter+1);
-    } else {
-        return AP4_ERROR_INTERNAL;
+        unsigned int chunk_size     = m_NaluLengthSize+nalu_length;
+        unsigned int cleartext_size = chunk_size%16;
+        unsigned int block_count    = chunk_size/16;
+        if (cleartext_size < m_NaluLengthSize+1) {
+            AP4_ASSERT(block_count);
+            --block_count;
+            cleartext_size += 16;
+        }
+                
+        // move the pointers
+        in += chunk_size;
+        
+        // store the info
+        bytes_of_cleartext_data.Append((AP4_UI16)cleartext_size);
+        bytes_of_encrypted_data.Append((AP4_UI32)(block_count*16));
     }
     
     return AP4_SUCCESS;
 }
 
 /*----------------------------------------------------------------------
-|   AP4_CencCtrSubSampleEncrypter::GetSubSampleMap
+|   AP4_CencAdvancedSubSampleEncrypter::GetSubSampleMap
 +---------------------------------------------------------------------*/
 AP4_Result 
-AP4_CencCtrSubSampleEncrypter::GetSubSampleMap(AP4_DataBuffer&      sample_data, 
-                                               AP4_Array<AP4_UI16>& bytes_of_cleartext_data, 
-                                               AP4_Array<AP4_UI32>& bytes_of_encrypted_data)
+AP4_CencAdvancedSubSampleMapper::GetSubSampleMap(AP4_DataBuffer&      sample_data,
+                                                 AP4_Array<AP4_UI16>& bytes_of_cleartext_data,
+                                                 AP4_Array<AP4_UI32>& bytes_of_encrypted_data)
 {
     // setup direct pointers to the buffers
     const AP4_UI08* in = sample_data.GetData();
@@ -209,6 +213,54 @@
 }
 
 /*----------------------------------------------------------------------
+|   AP4_CencSampleEncrypter::~AP4_CencSampleEncrypter
++---------------------------------------------------------------------*/
+AP4_CencSampleEncrypter::~AP4_CencSampleEncrypter()
+{
+    delete m_Cipher;
+}
+
+/*----------------------------------------------------------------------
+|   AP4_CencCtrSampleEncrypter::EncryptSampleData
++---------------------------------------------------------------------*/
+AP4_Result 
+AP4_CencCtrSampleEncrypter::EncryptSampleData(AP4_DataBuffer& data_in,
+                                              AP4_DataBuffer& data_out,
+                                              AP4_DataBuffer& /* sample_infos */)
+{
+    // the output has the same size as the input
+    data_out.SetDataSize(data_in.GetDataSize());
+
+    // setup direct pointers to the buffers
+    const AP4_UI08* in  = data_in.GetData();
+    AP4_UI08*       out = data_out.UseData();
+    
+    // setup the IV
+    m_Cipher->SetIV(m_Iv);
+
+    // process the sample data
+    if (data_in.GetDataSize()) {
+        AP4_Size out_size = data_out.GetDataSize();
+        AP4_Result result = m_Cipher->ProcessBuffer(in, data_in.GetDataSize(), out, &out_size, false);
+        if (AP4_FAILED(result)) return result;
+    }
+    
+    // update the IV
+    if (m_IvSize == 16) {
+        unsigned int block_count = (data_in.GetDataSize()+15)/16;
+        AP4_UI64 counter = AP4_BytesToUInt64BE(&m_Iv[8]);
+        AP4_BytesFromUInt64BE(&m_Iv[8], counter+block_count);
+    } else if (m_IvSize == 8){
+        AP4_UI64 counter = AP4_BytesToUInt64BE(&m_Iv[0]);
+        AP4_BytesFromUInt64BE(&m_Iv[0], counter+1);
+    } else {
+        return AP4_ERROR_INTERNAL;
+    }
+    
+    return AP4_SUCCESS;
+}
+
+/*----------------------------------------------------------------------
 |   AP4_CencCtrSubSampleEncrypter::EncryptSampleData
 +---------------------------------------------------------------------*/
 AP4_Result 
@@ -233,7 +285,7 @@
     // get the subsample map
     AP4_Array<AP4_UI16> bytes_of_cleartext_data;
     AP4_Array<AP4_UI32> bytes_of_encrypted_data;
-    AP4_Result result = GetSubSampleMap(data_in, bytes_of_cleartext_data, bytes_of_encrypted_data);
+    AP4_Result result = m_SubSampleMapper->GetSubSampleMap(data_in, bytes_of_cleartext_data, bytes_of_encrypted_data);
     if (AP4_FAILED(result)) return result;
 
     // process the data
@@ -279,58 +331,6 @@
 }
 
 /*----------------------------------------------------------------------
-|   AP4_CencCbcSubSampleEncrypter::GetSubSampleMap
-+---------------------------------------------------------------------*/
-AP4_Result 
-AP4_CencCbcSubSampleEncrypter::GetSubSampleMap(AP4_DataBuffer&      sample_data, 
-                                               AP4_Array<AP4_UI16>& bytes_of_cleartext_data, 
-                                               AP4_Array<AP4_UI32>& bytes_of_encrypted_data)
-{
-    // setup direct pointers to the buffers
-    const AP4_UI08* in = sample_data.GetData();
-    
-    // process the sample data, one NALU at a time
-    const AP4_UI08* in_end = sample_data.GetData()+sample_data.GetDataSize();
-    while ((AP4_Size)(in_end-in) > 1+m_NaluLengthSize) {
-        unsigned int nalu_length;
-        switch (m_NaluLengthSize) {
-            case 1:
-                nalu_length = *in;
-                break;
-                
-            case 2:
-                nalu_length = AP4_BytesToUInt16BE(in);
-                break;
-                
-            case 4:
-                nalu_length = AP4_BytesToUInt32BE(in);
-                break;
-                
-            default:
-                return AP4_ERROR_INVALID_FORMAT;
-        }
-
-        unsigned int chunk_size     = m_NaluLengthSize+nalu_length;
-        unsigned int cleartext_size = chunk_size%16;
-        unsigned int block_count    = chunk_size/16;
-        if (cleartext_size < m_NaluLengthSize+1) {
-            AP4_ASSERT(block_count);
-            --block_count;
-            cleartext_size += 16;
-        }
-                
-        // move the pointers
-        in += chunk_size;
-        
-        // store the info
-        bytes_of_cleartext_data.Append((AP4_UI16)cleartext_size);
-        bytes_of_encrypted_data.Append((AP4_UI32)(block_count*16));
-    }
-    
-    return AP4_SUCCESS;
-}
-
-/*----------------------------------------------------------------------
 |   AP4_CencCbcSampleEncrypter::EncryptSampleData
 +---------------------------------------------------------------------*/
 AP4_Result 
@@ -357,8 +357,10 @@
         in  += block_count*16;
         out += block_count*16;
         
-        // update the IV (last cipherblock emitted)
-        AP4_CopyMemory(m_Iv, out-16, 16);
+        if (!m_ConstantIv) {
+            // update the IV (last cipherblock emitted)
+            AP4_CopyMemory(m_Iv, out-16, 16);
+        }
     }
     
     // any partial block at the end remains in the clear
@@ -394,7 +396,7 @@
     // get the subsample map
     AP4_Array<AP4_UI16> bytes_of_cleartext_data;
     AP4_Array<AP4_UI32> bytes_of_encrypted_data;
-    AP4_Result result = GetSubSampleMap(data_in, bytes_of_cleartext_data, bytes_of_encrypted_data);
+    AP4_Result result = m_SubSampleMapper->GetSubSampleMap(data_in, bytes_of_cleartext_data, bytes_of_encrypted_data);
     if (AP4_FAILED(result)) return result;
 
     for (unsigned int i=0; i<bytes_of_cleartext_data.ItemCount(); i++) {
@@ -402,15 +404,21 @@
         AP4_CopyMemory(out, in, bytes_of_cleartext_data[i]);
         
         // encrypt the rest
+        if (m_ResetIvForEachSubsample) {
+            m_Cipher->SetIV(m_Iv);
+        }
         if (bytes_of_encrypted_data[i]) {
             AP4_Size out_size = bytes_of_encrypted_data[i];
-            m_Cipher->ProcessBuffer(in+bytes_of_cleartext_data[i], 
-                                    bytes_of_encrypted_data[i], 
-                                    out+bytes_of_cleartext_data[i], 
-                                    &out_size, false);
+            result = m_Cipher->ProcessBuffer(in+bytes_of_cleartext_data[i],
+                                             bytes_of_encrypted_data[i],
+                                             out+bytes_of_cleartext_data[i],
+                                             &out_size, false);
+            if (AP4_FAILED(result)) return result;
             
-            // update the IV (last cipherblock emitted)
-            AP4_CopyMemory(m_Iv, out+bytes_of_cleartext_data[i]+bytes_of_encrypted_data[i]-16, 16);            
+            if (!m_ConstantIv) {
+                // update the IV (last cipherblock emitted)
+                AP4_CopyMemory(m_Iv, out+bytes_of_cleartext_data[i]+bytes_of_encrypted_data[i]-16, 16);
+            }
         }
         
         // move the pointers
@@ -439,8 +447,12 @@
     // constructor
     AP4_CencTrackEncrypter(AP4_CencVariant              variant,
                            AP4_UI32                     default_is_protected,
-                           AP4_UI08                     default_iv_size,
+                           AP4_UI08                     default_per_sample_iv_size,
                            const AP4_UI08*              default_kid,
+                           AP4_UI08                     default_constant_iv_size,
+                           const AP4_UI08*              default_constant_iv,
+                           AP4_UI08                     default_crypt_byte_block,
+                           AP4_UI08                     default_skip_byte_block,
                            AP4_Array<AP4_SampleEntry*>& sample_entries,
                            AP4_UI32                     format);
 
@@ -455,8 +467,12 @@
     AP4_Array<AP4_SampleEntry*> m_SampleEntries;
     AP4_UI32                    m_Format;
     AP4_UI32                    m_DefaultIsProtected;
-    AP4_UI08                    m_DefaultIvSize;
+    AP4_UI08                    m_DefaultPerSampleIvSize;
     AP4_UI08                    m_DefaultKid[16];
+    AP4_UI08                    m_DefaultConstantIvSize;
+    AP4_UI08                    m_DefaultConstantIv[16];
+    AP4_UI08                    m_DefaultCryptByteBlock;
+    AP4_UI08                    m_DefaultSkipByteBlock;
 };
 
 /*----------------------------------------------------------------------
@@ -465,17 +481,27 @@
 AP4_CencTrackEncrypter::AP4_CencTrackEncrypter(
     AP4_CencVariant              variant,
     AP4_UI32                     default_is_protected,
-    AP4_UI08                     default_iv_size,
+    AP4_UI08                     default_per_sample_iv_size,
     const AP4_UI08*              default_kid,
+    AP4_UI08                     default_constant_iv_size,
+    const AP4_UI08*              default_constant_iv,
+    AP4_UI08                     default_crypt_byte_block,
+    AP4_UI08                     default_skip_byte_block,
     AP4_Array<AP4_SampleEntry*>& sample_entries,
     AP4_UI32                     format) :
     m_Variant(variant),
     m_Format(format),
     m_DefaultIsProtected(default_is_protected),
-    m_DefaultIvSize(default_iv_size)
+    m_DefaultPerSampleIvSize(default_per_sample_iv_size),
+    m_DefaultConstantIvSize(default_constant_iv_size),
+    m_DefaultCryptByteBlock(default_crypt_byte_block),
+    m_DefaultSkipByteBlock(default_skip_byte_block)
 {
-    // copy the KID
+    // copy the KID and IV
     AP4_CopyMemory(m_DefaultKid, default_kid, 16);
+    if (default_constant_iv) {
+        AP4_CopyMemory(m_DefaultConstantIv, default_constant_iv, 16);
+    }
 
     // copy the sample entry list
     for (unsigned int i=0; i<sample_entries.ItemCount(); i++) {
@@ -502,7 +528,7 @@
                 schm = new AP4_SchmAtom(AP4_PROTECTION_SCHEME_TYPE_PIFF, 
                                         AP4_PROTECTION_SCHEME_VERSION_PIFF_11);
                 tenc = new AP4_PiffTrackEncryptionAtom(m_DefaultIsProtected,
-                                                       m_DefaultIvSize, 
+                                                       m_DefaultPerSampleIvSize,
                                                        m_DefaultKid);
                 break;
                 
@@ -510,7 +536,7 @@
                 schm = new AP4_SchmAtom(AP4_PROTECTION_SCHEME_TYPE_CENC, 
                                         AP4_PROTECTION_SCHEME_VERSION_CENC_10);
                 tenc = new AP4_TencAtom(m_DefaultIsProtected,
-                                        m_DefaultIvSize,
+                                        m_DefaultPerSampleIvSize,
                                         m_DefaultKid);
                 break;
 
@@ -518,7 +544,7 @@
                 schm = new AP4_SchmAtom(AP4_PROTECTION_SCHEME_TYPE_CBC1,
                                         AP4_PROTECTION_SCHEME_VERSION_CENC_10);
                 tenc = new AP4_TencAtom(m_DefaultIsProtected,
-                                        m_DefaultIvSize,
+                                        m_DefaultPerSampleIvSize,
                                         m_DefaultKid);
                 break;
 
@@ -526,16 +552,24 @@
                 schm = new AP4_SchmAtom(AP4_PROTECTION_SCHEME_TYPE_CENS,
                                         AP4_PROTECTION_SCHEME_VERSION_CENC_10);
                 tenc = new AP4_TencAtom(m_DefaultIsProtected,
-                                        m_DefaultIvSize,
-                                        m_DefaultKid);
+                                        m_DefaultPerSampleIvSize,
+                                        m_DefaultKid,
+                                        m_DefaultConstantIvSize,
+                                        m_DefaultConstantIv,
+                                        m_DefaultCryptByteBlock,
+                                        m_DefaultSkipByteBlock);
                 break;
 
             case AP4_CENC_VARIANT_MPEG_CBCS:
                 schm = new AP4_SchmAtom(AP4_PROTECTION_SCHEME_TYPE_CBCS,
                                         AP4_PROTECTION_SCHEME_VERSION_CENC_10);
                 tenc = new AP4_TencAtom(m_DefaultIsProtected,
-                                        m_DefaultIvSize,
-                                        m_DefaultKid);
+                                        m_DefaultPerSampleIvSize,
+                                        m_DefaultKid,
+                                        m_DefaultConstantIvSize,
+                                        m_DefaultConstantIv,
+                                        m_DefaultCryptByteBlock,
+                                        m_DefaultSkipByteBlock);
                 break;
         }
         
@@ -677,13 +711,23 @@
             break;
             
         case AP4_CENC_VARIANT_MPEG_CBC1:
-        case AP4_CENC_VARIANT_MPEG_CENS:
-        case AP4_CENC_VARIANT_MPEG_CBCS:
             m_SampleEncryptionAtom = new AP4_SencAtom(16);
             m_Saiz = new AP4_SaizAtom();
             m_Saio = new AP4_SaioAtom();
             break;
 
+        case AP4_CENC_VARIANT_MPEG_CENS:
+            m_SampleEncryptionAtom = new AP4_SencAtom(16, 0, NULL, 0, 0);
+            m_Saiz = new AP4_SaizAtom();
+            m_Saio = new AP4_SaioAtom();
+            break;
+
+        case AP4_CENC_VARIANT_MPEG_CBCS:
+            m_SampleEncryptionAtom = new AP4_SencAtom(0, 16, NULL, 0, 0);
+            m_Saiz = new AP4_SaizAtom();
+            m_Saio = new AP4_SaioAtom();
+            break;
+            
         default:
             return AP4_ERROR_INTERNAL;
     }
@@ -738,8 +782,13 @@
             m_SampleEncryptionAtomShadow->SetSampleInfosSize(sample_count*m_SampleEncryptionAtomShadow->GetPerSampleIvSize());
         }
         if (m_Saiz) {
-            m_Saiz->SetDefaultSampleInfoSize(m_SampleEncryptionAtom->GetPerSampleIvSize());
-            m_Saiz->SetSampleCount(sample_count);
+            if (m_SampleEncryptionAtom->GetPerSampleIvSize()) {
+                m_Saiz->SetDefaultSampleInfoSize(m_SampleEncryptionAtom->GetPerSampleIvSize());
+                m_Saiz->SetSampleCount(sample_count);
+            } else {
+                m_Saiz->SetDefaultSampleInfoSize(0);
+                m_Saiz->SetSampleCount(0);
+            }
         }
         return AP4_SUCCESS;
     }
@@ -1155,18 +1204,29 @@
     AP4_BlockCipher::CipherMode  cipher_mode;
     AP4_BlockCipher::CtrParams   cipher_ctr_params;
     const void*                  cipher_mode_params = NULL;
-    AP4_UI32                     is_protected = 0;
+    AP4_UI08                     crypt_byte_block = 0;
+    AP4_UI08                     skip_byte_block = 0;
+    bool                         constant_iv = false;
+    bool                         reset_iv_at_each_subsample = false;
     switch (m_Variant) {
         case AP4_CENC_VARIANT_PIFF_CTR:
-            is_protected = 1;
             cipher_mode = AP4_BlockCipher::CTR;
             cipher_ctr_params.counter_size = 8;
             cipher_mode_params = &cipher_ctr_params;
+
+            track_encrypter = new AP4_CencTrackEncrypter(m_Variant,
+                                                         1,
+                                                         cipher_iv_size,
+                                                         kid,
+                                                         0,
+                                                         NULL,
+                                                         0,
+                                                         0,
+                                                         entries,
+                                                         enc_format);
             break;
             
         case AP4_CENC_VARIANT_MPEG_CENC:
-        case AP4_CENC_VARIANT_MPEG_CENS:
-            is_protected = 1;
             cipher_mode = AP4_BlockCipher::CTR;
             cipher_ctr_params.counter_size = 8;
             cipher_mode_params = &cipher_ctr_params;
@@ -1175,29 +1235,94 @@
                  !AP4_GlobalOptions::GetBool("mpeg-cenc.iv-size-16")) {
                 cipher_iv_size = 8;
             }
+
+            track_encrypter = new AP4_CencTrackEncrypter(m_Variant,
+                                                         1,
+                                                         cipher_iv_size,
+                                                         kid,
+                                                         0,
+                                                         NULL,
+                                                         0,
+                                                         0,
+                                                         entries, 
+                                                         enc_format);
             break;
             
+        case AP4_CENC_VARIANT_MPEG_CENS:
+            cipher_mode = AP4_BlockCipher::CTR;
+            cipher_ctr_params.counter_size = 8;
+            cipher_mode_params = &cipher_ctr_params;
+            if (AP4_GlobalOptions::GetBool("mpeg-cenc.iv-size-8") && !AP4_GlobalOptions::GetBool("mpeg-cenc.iv-size-16")) {
+                cipher_iv_size = 8;
+            }
+            if (enc_format == AP4_ATOM_TYPE_ENCV) {
+                crypt_byte_block = 1;
+                skip_byte_block  = 9;
+            }
+            track_encrypter = new AP4_CencTrackEncrypter(m_Variant,
+                                                         1,
+                                                         cipher_iv_size,
+                                                         kid,
+                                                         0,
+                                                         NULL,
+                                                         crypt_byte_block,
+                                                         skip_byte_block,
+                                                         entries, 
+                                                         enc_format);
+            break;
+
         case AP4_CENC_VARIANT_PIFF_CBC:
-            is_protected = 2;
             cipher_mode = AP4_BlockCipher::CBC;
+            track_encrypter = new AP4_CencTrackEncrypter(m_Variant,
+                                                         2,
+                                                         cipher_iv_size,
+                                                         kid,
+                                                         0,
+                                                         NULL,
+                                                         0,
+                                                         0,
+                                                         entries, 
+                                                         enc_format);
             break;
             
         case AP4_CENC_VARIANT_MPEG_CBC1:
+            cipher_mode = AP4_BlockCipher::CBC;
+            track_encrypter = new AP4_CencTrackEncrypter(m_Variant,
+                                                         1,
+                                                         cipher_iv_size,
+                                                         kid,
+                                                         0,
+                                                         NULL,
+                                                         0,
+                                                         0,
+                                                         entries, 
+                                                         enc_format);
+            break;
+
         case AP4_CENC_VARIANT_MPEG_CBCS:
-            is_protected = 1;
             cipher_mode = AP4_BlockCipher::CBC;
+            if (enc_format == AP4_ATOM_TYPE_ENCV) {
+                crypt_byte_block = 1;
+                skip_byte_block  = 9;
+            }
+            constant_iv = true;
+            reset_iv_at_each_subsample = true;
+            track_encrypter = new AP4_CencTrackEncrypter(m_Variant,
+                                                         1,
+                                                         0,
+                                                         kid,
+                                                         cipher_iv_size,
+                                                         iv->GetData(),
+                                                         crypt_byte_block,
+                                                         skip_byte_block,
+                                                         entries, 
+                                                         enc_format);
             break;
 
         default:
             return NULL;
     }
-    track_encrypter = new AP4_CencTrackEncrypter(m_Variant,
-                                                 is_protected,
-                                                 cipher_iv_size,
-                                                 kid,
-                                                 entries, 
-                                                 enc_format);
-        
+    
     // create a block cipher
     AP4_BlockCipher* block_cipher = NULL;
     AP4_Result result = m_BlockCipherFactory->CreateCipher(AP4_BlockCipher::AES_128,
@@ -1207,50 +1332,79 @@
                                                            key->GetData(), 
                                                            key->GetDataSize(), 
                                                            block_cipher);
-    if (AP4_FAILED(result)) return NULL;
+    if (AP4_FAILED(result)) {
+        delete track_encrypter;
+        return NULL;
+    }
     
+    // compute the size of NAL units
+    unsigned int nalu_length_size = 0;
+    if (format == AP4_ATOM_TYPE_AVC1 ||
+        format == AP4_ATOM_TYPE_AVC2 ||
+        format == AP4_ATOM_TYPE_AVC3 ||
+        format == AP4_ATOM_TYPE_AVC4) {
+        AP4_AvccAtom* avcc = AP4_DYNAMIC_CAST(AP4_AvccAtom, entries[0]->GetChild(AP4_ATOM_TYPE_AVCC));
+        if (avcc) {
+            nalu_length_size = avcc->GetNaluLengthSize();
+        }
+    } else if (format == AP4_ATOM_TYPE_HEV1 ||
+               format == AP4_ATOM_TYPE_HVC1) {
+        AP4_HvccAtom* hvcc = AP4_DYNAMIC_CAST(AP4_HvccAtom, entries[0]->GetChild(AP4_ATOM_TYPE_HVCC));
+        if (hvcc) {
+            nalu_length_size = hvcc->GetNaluLengthSize();
+        }
+    }
+
     // add a new cipher state for this track
     AP4_CencSampleEncrypter* sample_encrypter = NULL;
-    AP4_StreamCipher* stream_cipher = NULL;
+    AP4_StreamCipher*        stream_cipher = NULL;
     switch (cipher_mode) {
         case AP4_BlockCipher::CBC:
             stream_cipher = new AP4_CbcStreamCipher(block_cipher);
-            if (format == AP4_ATOM_TYPE_AVC1 ||
-                format == AP4_ATOM_TYPE_AVC2 ||
-                format == AP4_ATOM_TYPE_AVC3 ||
-                format == AP4_ATOM_TYPE_AVC4) {
-                AP4_AvccAtom* avcc = AP4_DYNAMIC_CAST(AP4_AvccAtom, entries[0]->GetChild(AP4_ATOM_TYPE_AVCC));
-                if (avcc == NULL) return NULL;
-                sample_encrypter = new AP4_CencCbcSubSampleEncrypter(stream_cipher, avcc->GetNaluLengthSize(), format);
-            } else if (format == AP4_ATOM_TYPE_HEV1 ||
-                       format == AP4_ATOM_TYPE_HVC1) {
-                AP4_HvccAtom* hvcc = AP4_DYNAMIC_CAST(AP4_HvccAtom, entries[0]->GetChild(AP4_ATOM_TYPE_HVCC));
-                if (hvcc == NULL) return NULL;
-                sample_encrypter = new AP4_CencCbcSubSampleEncrypter(stream_cipher, hvcc->GetNaluLengthSize(), format);
+            if (crypt_byte_block && skip_byte_block) {
+                stream_cipher = new AP4_PatternStreamCipher(stream_cipher, crypt_byte_block, skip_byte_block);
+            }
+
+            if (nalu_length_size) {
+                AP4_CencSubSampleMapper* subsample_mapper = NULL;
+                if (m_Variant == AP4_CENC_VARIANT_MPEG_CBCS) {
+                    subsample_mapper = new AP4_CencAdvancedSubSampleMapper /* AP4_CencCbcsSubSampleMapper */(nalu_length_size, format);
+                } else {
+                    subsample_mapper = new AP4_CencBasicSubSampleMapper(nalu_length_size, format);
+                }
+                sample_encrypter = new AP4_CencCbcSubSampleEncrypter(stream_cipher,
+                                                                     constant_iv,
+                                                                     reset_iv_at_each_subsample,
+                                                                     subsample_mapper);
             } else {
-                sample_encrypter = new AP4_CencCbcSampleEncrypter(stream_cipher);
+                sample_encrypter = new AP4_CencCbcSampleEncrypter(stream_cipher, constant_iv);
             }
+
             break;
             
         case AP4_BlockCipher::CTR:
             stream_cipher = new AP4_CtrStreamCipher(block_cipher, 16);
-            if (format == AP4_ATOM_TYPE_AVC1 ||
-                format == AP4_ATOM_TYPE_AVC2 ||
-                format == AP4_ATOM_TYPE_AVC3 ||
-                format == AP4_ATOM_TYPE_AVC4) {
-                AP4_AvccAtom* avcc = AP4_DYNAMIC_CAST(AP4_AvccAtom, entries[0]->GetChild(AP4_ATOM_TYPE_AVCC));
-                if (avcc == NULL) return NULL;
-                sample_encrypter = new AP4_CencCtrSubSampleEncrypter(stream_cipher, avcc->GetNaluLengthSize(), cipher_iv_size, format);
-            } else if (format == AP4_ATOM_TYPE_HEV1 ||
-                       format == AP4_ATOM_TYPE_HVC1) {
-                AP4_HvccAtom* hvcc = AP4_DYNAMIC_CAST(AP4_HvccAtom, entries[0]->GetChild(AP4_ATOM_TYPE_HVCC));
-                if (hvcc == NULL) return NULL;
-                sample_encrypter = new AP4_CencCtrSubSampleEncrypter(stream_cipher, hvcc->GetNaluLengthSize(), cipher_iv_size, format);
+            if (crypt_byte_block && skip_byte_block) {
+                stream_cipher = new AP4_PatternStreamCipher(stream_cipher, crypt_byte_block, skip_byte_block);
+            }
+            if (nalu_length_size) {
+                AP4_CencSubSampleMapper* subsample_mapper = new AP4_CencAdvancedSubSampleMapper(nalu_length_size, format);
+                sample_encrypter = new AP4_CencCtrSubSampleEncrypter(stream_cipher,
+                                                                     constant_iv,
+                                                                     reset_iv_at_each_subsample,
+                                                                     cipher_iv_size,
+                                                                     subsample_mapper);
             } else {
-                sample_encrypter = new AP4_CencCtrSampleEncrypter(stream_cipher, cipher_iv_size);
+                sample_encrypter = new AP4_CencCtrSampleEncrypter(stream_cipher, constant_iv, cipher_iv_size);
             }
             break;
     }
+    if (sample_encrypter == NULL) {
+        delete stream_cipher;
+        delete block_cipher;
+        delete track_encrypter;
+        return NULL;
+    }
     sample_encrypter->SetIv(iv->GetData());
 
     // if we need to leave some samples unencrypted, create clones of the sample descriptions
@@ -1324,9 +1478,10 @@
 AP4_CencSingleSampleDecrypter::Create(AP4_UI32                        cipher_type,
                                       const AP4_UI08*                 key,
                                       AP4_Size                        key_size,
-                                      unsigned int                    crypt_byte_block,
-                                      unsigned int                    skip_byte_block,
+                                      AP4_UI08                        crypt_byte_block,
+                                      AP4_UI08                        skip_byte_block,
                                       AP4_BlockCipherFactory*         block_cipher_factory,
+                                      bool                            reset_iv_at_each_subsample,
                                       AP4_CencSingleSampleDecrypter*& decrypter)
 {
     // check the parameters
@@ -1338,7 +1493,7 @@
     }
     
     // create the cipher
-    AP4_StreamCipher* stream_cipher = NULL;
+    AP4_StreamCipher* stream_cipher    = NULL;
     bool              full_blocks_only = false;
     switch (cipher_type) {
         case AP4_CENC_CIPHER_NONE:
@@ -1387,8 +1542,13 @@
             return AP4_ERROR_NOT_SUPPORTED;
     }
 
+    // wrap with a pattern processor if needed
+    if (crypt_byte_block && skip_byte_block) {
+        stream_cipher = new AP4_PatternStreamCipher(stream_cipher, crypt_byte_block, skip_byte_block);
+    }
+    
     // create the decrypter
-    decrypter = new AP4_CencSingleSampleDecrypter(stream_cipher, full_blocks_only, crypt_byte_block, skip_byte_block);
+    decrypter = new AP4_CencSingleSampleDecrypter(stream_cipher, full_blocks_only, reset_iv_at_each_subsample);
 
     return AP4_SUCCESS;
 }
@@ -1438,7 +1598,6 @@
     if (subsample_count) {
         // process the sample data, one sub-sample at a time
         const AP4_UI08* in_end = data_in.GetData()+data_in.GetDataSize();
-        unsigned int encrypted_total = 0;
         for (unsigned int i=0; i<subsample_count; i++) {
             AP4_UI16 cleartext_size = bytes_of_cleartext_data[i];
             AP4_UI32 encrypted_size = bytes_of_encrypted_data[i];
@@ -1455,21 +1614,26 @@
             
             // decrypt the rest
             if (encrypted_size) {
-                AP4_Result result = DecryptRange(encrypted_total, in+cleartext_size, out+cleartext_size, encrypted_size);
+                if (m_ResetIvAtEachSubsample) {
+                    m_Cipher->SetIV(iv);
+                }
+                
+                AP4_Result result = m_Cipher->ProcessBuffer(in+cleartext_size, encrypted_size, out+cleartext_size, &encrypted_size, false);
                 if (AP4_FAILED(result)) return result;
             }
             
             // move the pointers and udate counters
-            in              += cleartext_size+encrypted_size;
-            out             += cleartext_size+encrypted_size;
-            encrypted_total += encrypted_size;
+            in  += cleartext_size+encrypted_size;
+            out += cleartext_size+encrypted_size;
         }
     } else {
         if (m_FullBlocksOnly) {
             unsigned int block_count = data_in.GetDataSize()/16;
             if (block_count) {
-                AP4_Result result = DecryptRange(0, in, out, block_count*16);
+                AP4_Size out_size = data_out.GetDataSize();
+                AP4_Result result = m_Cipher->ProcessBuffer(in, block_count*16, out, &out_size, false);
                 if (AP4_FAILED(result)) return result;
+                AP4_ASSERT(out_size == block_count*16);
                 in  += block_count*16;
                 out += block_count*16;
             }
@@ -1482,7 +1646,7 @@
         } else {
             // process the entire sample data at once
             AP4_Size encrypted_size = data_in.GetDataSize();
-            AP4_Result result = DecryptRange(0, in, out, encrypted_size);
+            AP4_Result result = m_Cipher->ProcessBuffer(in, encrypted_size, out, &encrypted_size, false);
             if (AP4_FAILED(result)) return result;
         }
     }
@@ -1491,88 +1655,6 @@
 }
 
 /*----------------------------------------------------------------------
-|   AP4_CencSingleSampleDecrypter::DecryptRange
-+---------------------------------------------------------------------*/
-AP4_Result
-AP4_CencSingleSampleDecrypter::DecryptRange(unsigned int range_position, const AP4_UI08* in, AP4_UI08* out, AP4_Size size)
-{
-    if (m_CryptByteBlock && m_SkipByteBlock) {
-        // pattern encryption
-        unsigned int pattern_span = m_CryptByteBlock+m_SkipByteBlock;
-        
-        // check that the range is block-aligned (required by the spec for pattern encryption)
-        if (range_position % 16) return AP4_ERROR_INVALID_FORMAT;
-        
-        // compute where we are in the pattern
-        unsigned int block_position   = range_position/16;
-        unsigned int pattern_position = block_position % pattern_span;
-
-        // process the range
-        AP4_Size processed = 0;
-        while (processed < size) {
-            unsigned int crypt_size = 0;
-            unsigned int skip_size  = m_SkipByteBlock*16;
-            if (pattern_position < m_CryptByteBlock) {
-                // in the encrypted part
-                crypt_size = (m_CryptByteBlock-pattern_position)*16;
-            } else {
-                // in the skipped part
-                skip_size = pattern_span-pattern_position;
-            }
-            
-            // clip
-            AP4_Size remain = size-processed;
-            if (crypt_size > remain) {
-                crypt_size = 16*(remain/16);
-                skip_size  = remain-crypt_size;
-            }
-            if (crypt_size+skip_size > remain) {
-                skip_size = remain-crypt_size;
-            }
-            
-            // encrypted part
-            if (crypt_size) {
-                AP4_Size in_size  = crypt_size;
-                AP4_Size out_size = crypt_size;
-                
-                AP4_Result result = m_Cipher->ProcessBuffer(in, in_size, out, &out_size);
-                if (AP4_FAILED(result)) return result;
-                // check that we got back what we expectected
-                if (out_size != in_size) {
-                    return AP4_ERROR_INTERNAL;
-                }
-                in        += crypt_size;
-                out       += crypt_size;
-                processed += crypt_size;
-            }
-            
-            // skipped part
-            if (skip_size) {
-                AP4_CopyMemory(out, in, skip_size);
-            }
-            in        += skip_size;
-            out       += skip_size;
-            processed += skip_size;
-            
-            // we're now at the start of a new pattern
-            pattern_position = 0;
-        }
-    } else {
-        AP4_Size in_size  = size;
-        AP4_Size out_size = size;
-        AP4_Result result = m_Cipher->ProcessBuffer(in, in_size, out, &out_size, false);
-        if (AP4_FAILED(result)) return result;
-        
-        // check that we got back what we expectected
-        if (out_size != in_size) {
-            return AP4_ERROR_INTERNAL;
-        }
-    }
-    
-    return AP4_SUCCESS;
-}
-
-/*----------------------------------------------------------------------
 |   AP4_CencSampleDecrypter::Create
 +---------------------------------------------------------------------*/
 AP4_Result 
@@ -1626,12 +1708,14 @@
     // create the sample info table
     AP4_CencSampleInfoTable* sample_info_table = NULL;
     AP4_UI32                 protection_sheme  = 0;
+    bool                     reset_iv_at_each_subsample = false;
     AP4_Result result = AP4_CencSampleInfoTable::Create(sample_description,
                                                         traf,
                                                         saio,
                                                         saiz,
                                                         sample_encryption_atom,
                                                         protection_sheme,
+                                                        reset_iv_at_each_subsample,
                                                         aux_info_data,
                                                         aux_info_data_offset,
                                                         sample_info_table);
@@ -1640,7 +1724,13 @@
     }
 
     // we now have all the info we need to create the decrypter
-    return Create(sample_info_table, protection_sheme, key, key_size, block_cipher_factory, decrypter);
+    return Create(sample_info_table,
+                  protection_sheme,
+                  key,
+                  key_size,
+                  block_cipher_factory,
+                  reset_iv_at_each_subsample,
+                  decrypter);
 }
 
 /*----------------------------------------------------------------------
@@ -1652,6 +1742,7 @@
                                 const AP4_UI08*           key, 
                                 AP4_Size                  key_size,
                                 AP4_BlockCipherFactory*   block_cipher_factory,
+                                bool                      reset_iv_at_each_subsample,
                                 AP4_CencSampleDecrypter*& decrypter)
 {
     // default return value
@@ -1687,6 +1778,7 @@
                                                               sample_info_table->GetCryptByteBlock(),
                                                               sample_info_table->GetSkipByteBlock(),
                                                               block_cipher_factory,
+                                                              reset_iv_at_each_subsample,
                                                               single_sample_decrypter);
     if (AP4_FAILED(result)) return result;
 
@@ -2072,7 +2164,7 @@
 |   AP4_CencTrackEncryption::AP4_CencTrackEncryption
 +---------------------------------------------------------------------*/
 AP4_CencTrackEncryption::AP4_CencTrackEncryption(AP4_UI08 version) :
-    m_FormatVersion(version),
+    m_Version_(version),
     m_DefaultIsProtected(0),
     m_DefaultPerSampleIvSize(0),
     m_DefaultConstantIvSize(0),
@@ -2086,14 +2178,15 @@
 /*----------------------------------------------------------------------
 |   AP4_CencTrackEncryption::AP4_CencTrackEncryption
 +---------------------------------------------------------------------*/
-AP4_CencTrackEncryption::AP4_CencTrackEncryption(AP4_UI08        default_is_protected,
+AP4_CencTrackEncryption::AP4_CencTrackEncryption(AP4_UI08        version,
+                                                 AP4_UI08        default_is_protected,
                                                  AP4_UI08        default_per_sample_iv_size,
                                                  const AP4_UI08* default_kid,
                                                  AP4_UI08        default_constant_iv_size,
                                                  const AP4_UI08* default_constant_iv,
                                                  AP4_UI08        default_crypt_byte_block,
                                                  AP4_UI08        default_skip_byte_block) :
-    m_FormatVersion(0),
+    m_Version_(version),
     m_DefaultIsProtected(default_is_protected),
     m_DefaultPerSampleIvSize(default_per_sample_iv_size),
     m_DefaultConstantIvSize(default_constant_iv_size),
@@ -2120,7 +2213,7 @@
     AP4_UI08 reserved;
     AP4_Result result = stream.ReadUI08(reserved);
     if (AP4_FAILED(result)) return result;
-    if (m_FormatVersion == 0) {
+    if (m_Version_ == 0) {
         result = stream.ReadUI08(reserved);
         if (AP4_FAILED(result)) return result;
     } else {
@@ -2162,7 +2255,7 @@
     inspector.AddField("default_isProtected",        m_DefaultIsProtected);
     inspector.AddField("default_Per_Sample_IV_Size", m_DefaultPerSampleIvSize);
     inspector.AddField("default_KID",                m_DefaultKid, 16);
-    if (m_FormatVersion >= 1) {
+    if (m_Version_ >= 1) {
         inspector.AddField("default_crypt_byte_block", m_DefaultCryptByteBlock);
         inspector.AddField("default_skip_byte_block", m_DefaultSkipByteBlock);
     }
@@ -2186,7 +2279,7 @@
     // write the fields
     result = stream.WriteUI08(0); // reserved
     if (AP4_FAILED(result)) return result;
-    if (m_FormatVersion == 0) {
+    if (m_Version_ == 0) {
         result = stream.WriteUI08(0); // reserved
         if (AP4_FAILED(result)) return result;
     } else {
@@ -2221,6 +2314,7 @@
 AP4_CencSampleInfoTable::Create(AP4_ProtectedSampleDescription* sample_description,
                                 AP4_ContainerAtom*              traf,
                                 AP4_UI32&                       cipher_type,
+                                bool&                           reset_iv_at_each_subsample,
                                 AP4_ByteStream&                 aux_info_data,
                                 AP4_Position                    aux_info_data_offset,
                                 AP4_CencSampleInfoTable*&       sample_info_table)
@@ -2234,6 +2328,7 @@
                   saiz,
                   sample_encryption_atom,
                   cipher_type,
+                  reset_iv_at_each_subsample,
                   aux_info_data,
                   aux_info_data_offset,
                   sample_info_table);
@@ -2249,16 +2344,18 @@
                                 AP4_SaizAtom*&                  saiz,
                                 AP4_CencSampleEncryption*&      sample_encryption_atom,
                                 AP4_UI32&                       cipher_type,
+                                bool&                           reset_iv_at_each_subsample,
                                 AP4_ByteStream&                 aux_info_data,
                                 AP4_Position                    aux_info_data_offset,
                                 AP4_CencSampleInfoTable*&       sample_info_table)
 {
     // default return values
-    saio                   = NULL;
-    saiz                   = NULL;
-    sample_encryption_atom = NULL;
-    sample_info_table      = NULL;
-    cipher_type            = AP4_CENC_CIPHER_NONE;
+    saio                       = NULL;
+    saiz                       = NULL;
+    sample_encryption_atom     = NULL;
+    sample_info_table          = NULL;
+    cipher_type                = AP4_CENC_CIPHER_NONE;
+    reset_iv_at_each_subsample = false;
     
     // get the scheme info atom
     AP4_ContainerAtom* schi = sample_description->GetSchemeInfo()->GetSchiAtom();
@@ -2308,8 +2405,12 @@
         break;
 
       case AP4_PROTECTION_SCHEME_TYPE_CBC1:
+        cipher_type = AP4_CENC_CIPHER_AES_128_CBC;
+        break;
+
       case AP4_PROTECTION_SCHEME_TYPE_CBCS:
         cipher_type = AP4_CENC_CIPHER_AES_128_CBC;
+        reset_iv_at_each_subsample = true;
         break;
         
       default:
@@ -2355,7 +2456,8 @@
 
     // try to create a sample info table from senc
     if (sample_info_table == NULL && sample_encryption_atom) {
-        AP4_Result result = sample_encryption_atom->CreateSampleInfoTable(crypt_byte_block,
+        AP4_Result result = sample_encryption_atom->CreateSampleInfoTable(0,
+                                                                          crypt_byte_block,
                                                                           skip_byte_block,
                                                                           per_sample_iv_size,
                                                                           constant_iv_size,
@@ -2382,7 +2484,8 @@
             }
         }
         if (sample_info_table == NULL && saio && saiz) {
-            AP4_Result result = Create(crypt_byte_block,
+            AP4_Result result = Create(0,
+                                       crypt_byte_block,
                                        skip_byte_block,
                                        per_sample_iv_size,
                                        constant_iv_size,
@@ -2408,7 +2511,8 @@
 |   AP4_CencSampleInfoTable::Create
 +---------------------------------------------------------------------*/
 AP4_Result 
-AP4_CencSampleInfoTable::Create(AP4_UI08                  crypt_byte_block,
+AP4_CencSampleInfoTable::Create(AP4_UI08                  flags,
+                                AP4_UI08                  crypt_byte_block,
                                 AP4_UI08                  skip_byte_block,
                                 AP4_UI08                  per_sample_iv_size,
                                 AP4_UI08                  constant_iv_size,
@@ -2447,7 +2551,8 @@
             return AP4_ERROR_INVALID_PARAMETERS;
         }
     }
-    AP4_CencSampleInfoTable* table = new AP4_CencSampleInfoTable(crypt_byte_block,
+    AP4_CencSampleInfoTable* table = new AP4_CencSampleInfoTable(flags,
+                                                                 crypt_byte_block,
                                                                  skip_byte_block,
                                                                  sample_info_count,
                                                                  iv_size);
@@ -2532,7 +2637,7 @@
     }
     
     AP4_UI32 sample_count     = AP4_BytesToUInt32BE(serialized); serialized += 4; serialized_size -= 4;
-                                               serialized += 1; serialized_size -= 1;
+    AP4_UI08 flags            = serialized[0]; serialized += 1; serialized_size -= 1;
     AP4_UI08 crypt_byte_block = serialized[0]; serialized += 1; serialized_size -= 1;
     AP4_UI08 skip_byte_block  = serialized[0]; serialized += 1; serialized_size -= 1;
     AP4_UI08 iv_size          = serialized[0]; serialized += 1; serialized_size -= 1;
@@ -2540,7 +2645,7 @@
     if (serialized_size < sample_count*iv_size) {
         return AP4_ERROR_INVALID_FORMAT;
     }
-    AP4_CencSampleInfoTable* table = new AP4_CencSampleInfoTable(crypt_byte_block, skip_byte_block, sample_count, (AP4_UI08)iv_size);
+    AP4_CencSampleInfoTable* table = new AP4_CencSampleInfoTable(flags, crypt_byte_block, skip_byte_block, sample_count, (AP4_UI08)iv_size);
     table->m_IvData.SetData(serialized, sample_count*iv_size);
     serialized      += sample_count*iv_size;
     serialized_size -= sample_count*iv_size;
@@ -2601,13 +2706,15 @@
 /*----------------------------------------------------------------------
 |   AP4_CencSampleInfoTable::AP4_CencSampleInfoTable
 +---------------------------------------------------------------------*/
-AP4_CencSampleInfoTable::AP4_CencSampleInfoTable(AP4_UI08 crypt_byte_block,
+AP4_CencSampleInfoTable::AP4_CencSampleInfoTable(AP4_UI08 flags,
+                                                 AP4_UI08 crypt_byte_block,
                                                  AP4_UI08 skip_byte_block,
                                                  AP4_UI32 sample_count,
                                                  AP4_UI08 iv_size) :
+    m_SampleCount(sample_count),
+    m_Flags(flags),
     m_CryptByteBlock(crypt_byte_block),
     m_SkipByteBlock(skip_byte_block),
-    m_SampleCount(sample_count),
     m_IvSize(iv_size)
 {
     m_IvData.SetDataSize(m_IvSize*sample_count);
@@ -2645,8 +2752,11 @@
     buffer.SetDataSize(size);
     AP4_UI08* data = buffer.UseData();
     
-    AP4_BytesFromUInt32BE(data, m_SampleCount);                       data += 4;
-    AP4_BytesFromUInt32BE(data, m_IvSize);                            data += 4;
+    AP4_BytesFromUInt32BE(data, m_SampleCount); data += 4;
+    *data++ = m_Flags;
+    *data++ = m_CryptByteBlock;
+    *data++ = m_SkipByteBlock;
+    *data++ = m_IvSize;
     AP4_CopyMemory(data, m_IvData.GetData(), m_SampleCount*m_IvSize); data += m_SampleCount*m_IvSize;
     AP4_BytesFromUInt32BE(data, m_BytesOfCleartextData.ItemCount());  data += 4;
     for (unsigned int i=0; i<m_BytesOfCleartextData.ItemCount(); i++) {
@@ -2817,7 +2927,7 @@
     m_SampleInfoCursor(0)
 {
     AP4_SetMemory(m_ConstantIv, 0, 16);
-    if (constant_iv_size <= 16) {
+    if (constant_iv_size <= 16 && constant_iv) {
         AP4_CopyMemory(m_ConstantIv, constant_iv, m_ConstantIvSize);
     }
     AP4_SetMemory(m_Kid, 0, 16);
@@ -2896,7 +3006,8 @@
 |   AP4_CencSampleEncryption::CreateSampleInfoTable
 +---------------------------------------------------------------------*/
 AP4_Result      
-AP4_CencSampleEncryption::CreateSampleInfoTable(AP4_UI08                  default_crypt_byte_block,
+AP4_CencSampleEncryption::CreateSampleInfoTable(AP4_UI08                  flags,
+                                                AP4_UI08                  default_crypt_byte_block,
                                                 AP4_UI08                  default_skip_byte_block,
                                                 AP4_UI08                  default_per_sample_iv_size,
                                                 AP4_UI08                  default_constant_iv_size,
@@ -2925,7 +3036,8 @@
 
     // create the table
     AP4_Result result = AP4_ERROR_INVALID_FORMAT;
-    table = new AP4_CencSampleInfoTable(default_crypt_byte_block,
+    table = new AP4_CencSampleInfoTable(flags,
+                                        default_crypt_byte_block,
                                         default_skip_byte_block,
                                         m_SampleInfoCount,
                                         per_sample_iv_size?per_sample_iv_size:default_constant_iv_size);

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4CommonEncryption.h -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4CommonEncryption.h Changed

@@ -2,7 +2,7 @@
 |
 |    AP4 - Common Encryption support
 |
-|    Copyright 2002-2011 Axiomatic Systems, LLC
+|    Copyright 2002-2017 Axiomatic Systems, LLC
 |
 |
 |    This file is part of Bento4/AP4 (MP4 Atom Processing Library).
@@ -98,7 +98,8 @@
 protected:
     // constructors
     AP4_CencTrackEncryption(AP4_UI08 version);
-    AP4_CencTrackEncryption(AP4_UI08        default_is_protected,
+    AP4_CencTrackEncryption(AP4_UI08        version,
+                            AP4_UI08        default_is_protected,
                             AP4_UI08        default_per_sample_iv_size,
                             const AP4_UI08* default_kid,
                             AP4_UI08        default_constant_iv_size = 0,
@@ -108,7 +109,7 @@
     
 private:
     // members
-    AP4_UI08 m_FormatVersion; // cannot be called m_Version because it would conflict with AP4_Atom::m_Version
+    AP4_UI08 m_Version_; // cannot be called m_Version because it would conflict with AP4_Atom::m_Version
     AP4_UI08 m_DefaultIsProtected;
     AP4_UI08 m_DefaultPerSampleIvSize;
     AP4_UI08 m_DefaultConstantIvSize;
@@ -145,7 +146,8 @@
     AP4_Cardinal    GetSampleInfoCount()    { return m_SampleInfoCount; }
     AP4_Result      AddSampleInfo(const AP4_UI08* iv, AP4_DataBuffer& subsample_info);
     AP4_Result      SetSampleInfosSize(AP4_Size size);
-    AP4_Result      CreateSampleInfoTable(AP4_UI08                  default_crypt_byte_block,
+    AP4_Result      CreateSampleInfoTable(AP4_UI08                  flags,
+                                          AP4_UI08                  default_crypt_byte_block,
                                           AP4_UI08                  default_skip_byte_block,
                                           AP4_UI08                  default_per_sample_iv_size,
                                           AP4_UI08                  default_constant_iv_size,
@@ -190,6 +192,7 @@
     static AP4_Result Create(AP4_ProtectedSampleDescription* sample_description,
                              AP4_ContainerAtom*              traf,
                              AP4_UI32&                       cipher_type,
+                             bool&                           reset_iv_at_each_subsample,
                              AP4_ByteStream&                 aux_info_data,
                              AP4_Position                    aux_info_data_offset,
                              AP4_CencSampleInfoTable*&       sample_info_table);
@@ -200,11 +203,13 @@
                              AP4_SaizAtom*&                  saiz,
                              AP4_CencSampleEncryption*&      sample_encryption_atom,
                              AP4_UI32&                       cipher_type,
+                             bool&                           reset_iv_at_each_subsample,
                              AP4_ByteStream&                 aux_info_data,
                              AP4_Position                    aux_info_data_offset,
                              AP4_CencSampleInfoTable*&       sample_info_table);
                              
-    static AP4_Result Create(AP4_UI08                  crypt_byte_block,
+    static AP4_Result Create(AP4_UI08                  flags,
+                             AP4_UI08                  crypt_byte_block,
                              AP4_UI08                  skip_byte_block,
                              AP4_UI08                  per_sample_iv_size,
                              AP4_UI08                  constant_iv_size,
@@ -223,12 +228,14 @@
                              AP4_CencSampleInfoTable*& sample_info_table);
     
     // constructor
-    AP4_CencSampleInfoTable(AP4_UI08 crypt_byte_block,
+    AP4_CencSampleInfoTable(AP4_UI08 flags,
+                            AP4_UI08 crypt_byte_block,
                             AP4_UI08 skip_byte_block,
                             AP4_UI32 sample_count,
                             AP4_UI08 iv_size);
     
     // methods
+    AP4_UI08        GetFlags()          { return m_Flags;          }
     AP4_UI08        GetCryptByteBlock() { return m_CryptByteBlock; }
     AP4_UI08        GetSkipByteBlock()  { return m_SkipByteBlock;  }
     AP4_UI32        GetSampleCount()    { return m_SampleCount;    }
@@ -261,9 +268,10 @@
     AP4_Result Serialize(AP4_DataBuffer& buffer);
     
 private:
+    AP4_UI32                m_SampleCount;
+    AP4_UI08                m_Flags;
     AP4_UI08                m_CryptByteBlock;
     AP4_UI08                m_SkipByteBlock;
-    AP4_UI32                m_SampleCount;
     AP4_UI08                m_IvSize;
     AP4_DataBuffer          m_IvData;
     AP4_Array<AP4_UI16>     m_BytesOfCleartextData;
@@ -284,7 +292,7 @@
 |   +---------------+----------------+------------------------------------+
 |   | 4 bytes       | 32-bit integer | sample_count                       |
 |   +---------------+----------------+------------------------------------+
-|   | 1 byte        | 8-bit integer  | reserved (0)                       |
+|   | 1 byte        | 8-bit integer  | flags                              |
 |   +---------------+----------------+------------------------------------+
 |   | 1 byte        | 8-bit integer  | crypt_byte_block                   |
 |   +---------------+----------------+------------------------------------+
@@ -349,8 +357,11 @@
 {
 public:
     // constructor and destructor
-    AP4_CencSampleEncrypter(AP4_StreamCipher* cipher) : m_Cipher(cipher) { 
-        AP4_SetMemory(m_Iv, 0, 16); 
+    AP4_CencSampleEncrypter(AP4_StreamCipher* cipher,
+                            bool              constant_iv) :
+        m_Cipher(cipher),
+        m_ConstantIv(constant_iv) {
+        AP4_SetMemory(m_Iv, 0, 16);
     };
     virtual ~AP4_CencSampleEncrypter();
 
@@ -371,6 +382,7 @@
 protected:
     AP4_UI08          m_Iv[16];
     AP4_StreamCipher* m_Cipher;
+    bool              m_ConstantIv;
 };
 
 /*----------------------------------------------------------------------
@@ -380,8 +392,10 @@
 {
 public:
     // constructor and destructor
-    AP4_CencCtrSampleEncrypter(AP4_StreamCipher* cipher, unsigned int iv_size) :
-        AP4_CencSampleEncrypter(cipher),
+    AP4_CencCtrSampleEncrypter(AP4_StreamCipher* cipher,
+                               bool              constant_iv,
+                               unsigned int      iv_size) :
+        AP4_CencSampleEncrypter(cipher, constant_iv),
         m_IvSize(iv_size) {}
 
     // methods
@@ -400,8 +414,9 @@
 {
 public:
     // constructor and destructor
-    AP4_CencCbcSampleEncrypter(AP4_StreamCipher* cipher) :
-        AP4_CencSampleEncrypter(cipher) {}
+    AP4_CencCbcSampleEncrypter(AP4_StreamCipher* cipher,
+                               bool              constant_iv) :
+        AP4_CencSampleEncrypter(cipher, constant_iv) {}
 
     // methods
     virtual AP4_Result EncryptSampleData(AP4_DataBuffer& data_in,
@@ -410,45 +425,126 @@
 };
 
 /*----------------------------------------------------------------------
-|   AP4_CencSubSampleEncrypter
+|   AP4_CencSubSampleMapper
 +---------------------------------------------------------------------*/
-class AP4_CencSubSampleEncrypter : public AP4_CencSampleEncrypter
+class AP4_CencSubSampleMapper
 {
 public:
     // constructor and destructor
-    AP4_CencSubSampleEncrypter(AP4_StreamCipher* cipher,
-                               AP4_Size          nalu_length_size,
-                               AP4_UI32          format) :
-        AP4_CencSampleEncrypter(cipher),
+    AP4_CencSubSampleMapper(AP4_Size nalu_length_size, AP4_UI32 format) :
         m_NaluLengthSize(nalu_length_size),
         m_Format(format) {}
-
+    virtual ~AP4_CencSubSampleMapper() {}
+    
     // methods
-    virtual bool UseSubSamples() { return true; }
-                                         
+    virtual AP4_Result GetSubSampleMap(AP4_DataBuffer&      sample_data,
+                                       AP4_Array<AP4_UI16>& bytes_of_cleartext_data, 
+                                       AP4_Array<AP4_UI32>& bytes_of_encrypted_data) = 0;
+
+protected:
     // members
     AP4_Size m_NaluLengthSize;
     AP4_UI32 m_Format;
 };
 
 /*----------------------------------------------------------------------
+|   AP4_CencBasicSubSampleMapper
++---------------------------------------------------------------------*/
+class AP4_CencBasicSubSampleMapper : public AP4_CencSubSampleMapper
+{
+public:
+    // constructor and destructor
+    AP4_CencBasicSubSampleMapper(AP4_Size nalu_length_size, AP4_UI32 format) :
+        AP4_CencSubSampleMapper(nalu_length_size, format) {}
+    
+    // methods
+    virtual AP4_Result GetSubSampleMap(AP4_DataBuffer&      sample_data,
+                                       AP4_Array<AP4_UI16>& bytes_of_cleartext_data, 
+                                       AP4_Array<AP4_UI32>& bytes_of_encrypted_data);
+};
+
+/*----------------------------------------------------------------------
+|   AP4_CencAdvancedSubSampleMapper
++---------------------------------------------------------------------*/
+class AP4_CencAdvancedSubSampleMapper : public AP4_CencSubSampleMapper
+{
+public:
+    // constructor and destructor
+    AP4_CencAdvancedSubSampleMapper(AP4_Size nalu_length_size, AP4_UI32 format) :
+        AP4_CencSubSampleMapper(nalu_length_size, format) {}
+    
+    // methods
+    virtual AP4_Result GetSubSampleMap(AP4_DataBuffer&      sample_data,
+                                       AP4_Array<AP4_UI16>& bytes_of_cleartext_data, 
+                                       AP4_Array<AP4_UI32>& bytes_of_encrypted_data);
+};
+
+/*----------------------------------------------------------------------
+|   AP4_CencCbcsSubSampleMapper
++---------------------------------------------------------------------*/
+class AP4_CencCbcsSubSampleMapper : public AP4_CencSubSampleMapper
+{
+public:
+    // constructor and destructor
+    AP4_CencCbcsSubSampleMapper(AP4_Size nalu_length_size, AP4_UI32 format) :
+        AP4_CencSubSampleMapper(nalu_length_size, format) {}
+    
+    // methods
+    virtual AP4_Result GetSubSampleMap(AP4_DataBuffer&      sample_data,
+                                       AP4_Array<AP4_UI16>& bytes_of_cleartext_data, 
+                                       AP4_Array<AP4_UI32>& bytes_of_encrypted_data);
+};
+
+/*----------------------------------------------------------------------
+|   AP4_CencSubSampleEncrypter
++---------------------------------------------------------------------*/
+class AP4_CencSubSampleEncrypter : public AP4_CencSampleEncrypter
+{
+public:
+    // constructor and destructor
+    AP4_CencSubSampleEncrypter(AP4_StreamCipher*        cipher,
+                               bool                     constant_iv,
+                               bool                     reset_iv_at_each_subsample,
+                               AP4_CencSubSampleMapper* subsample_mapper) :
+        AP4_CencSampleEncrypter(cipher, constant_iv),
+        m_ResetIvForEachSubsample(reset_iv_at_each_subsample),
+        m_SubSampleMapper(subsample_mapper) {}
+    virtual ~AP4_CencSubSampleEncrypter() {
+        delete m_SubSampleMapper;
+    }
+
+    // methods
+    virtual bool UseSubSamples() { return true; }
+    virtual AP4_Result GetSubSampleMap(AP4_DataBuffer&      sample_data,
+                                       AP4_Array<AP4_UI16>& bytes_of_cleartext_data,
+                                       AP4_Array<AP4_UI32>& bytes_of_encrypted_data) {
+        return m_SubSampleMapper->GetSubSampleMap(sample_data, bytes_of_cleartext_data, bytes_of_encrypted_data);
+    }
+    
+    // members
+    bool                     m_ResetIvForEachSubsample;
+    AP4_CencSubSampleMapper* m_SubSampleMapper;
+};
+
+/*----------------------------------------------------------------------
 |   AP4_CencCtrSubSampleEncrypter
 +---------------------------------------------------------------------*/
 class AP4_CencCtrSubSampleEncrypter : public AP4_CencSubSampleEncrypter
 {
 public:
     // constructor and destructor
-    AP4_CencCtrSubSampleEncrypter(AP4_StreamCipher* cipher,
-                                  AP4_Size          nalu_length_size,
-                                  unsigned int      iv_size,
-                                  AP4_UI32          format) :
-        AP4_CencSubSampleEncrypter(cipher, nalu_length_size, format),
+    AP4_CencCtrSubSampleEncrypter(AP4_StreamCipher*        cipher,
+                                  bool                     constant_iv,
+                                  bool                     reset_iv_at_each_subsample,
+                                  unsigned int             iv_size,
+                                  AP4_CencSubSampleMapper* subsample_mapper) :
+        AP4_CencSubSampleEncrypter(cipher,
+                                   constant_iv,
+                                   reset_iv_at_each_subsample,
+                                   subsample_mapper),
         m_IvSize(iv_size) {}
 
     // methods
-    virtual AP4_Result GetSubSampleMap(AP4_DataBuffer&      sample_data, 
-                                       AP4_Array<AP4_UI16>& bytes_of_cleartext_data, 
-                                       AP4_Array<AP4_UI32>& bytes_of_encrypted_data);
     virtual AP4_Result EncryptSampleData(AP4_DataBuffer& data_in,
                                          AP4_DataBuffer& data_out,
                                          AP4_DataBuffer& sample_infos);
@@ -464,15 +560,16 @@
 {
 public:
     // constructor and destructor
-    AP4_CencCbcSubSampleEncrypter(AP4_StreamCipher* cipher,
-                                  AP4_Size          nalu_length_size,
-                                  AP4_UI32          format) :
-        AP4_CencSubSampleEncrypter(cipher, nalu_length_size, format) {}
+    AP4_CencCbcSubSampleEncrypter(AP4_StreamCipher*        cipher,
+                                  bool                     constant_iv,
+                                  bool                     reset_iv_at_each_subsample,
+                                  AP4_CencSubSampleMapper* subsample_mapper) :
+        AP4_CencSubSampleEncrypter(cipher,
+                                   constant_iv,
+                                   reset_iv_at_each_subsample,
+                                   subsample_mapper) {}
 
     // methods
-    virtual AP4_Result GetSubSampleMap(AP4_DataBuffer&      sample_data, 
-                                       AP4_Array<AP4_UI16>& bytes_of_cleartext_data, 
-                                       AP4_Array<AP4_UI32>& bytes_of_encrypted_data);
     virtual AP4_Result EncryptSampleData(AP4_DataBuffer& data_in,
                                          AP4_DataBuffer& data_out,
                                          AP4_DataBuffer& sample_infos);
@@ -562,17 +659,16 @@
     static AP4_Result Create(AP4_UI32                        cipher_type,
                              const AP4_UI08*                 key,
                              AP4_Size                        key_size,
-                             unsigned int                    crypt_byte_block,
-                             unsigned int                    skip_byte_block,
+                             AP4_UI08                        crypt_byte_block,
+                             AP4_UI08                        skip_byte_block,
                              AP4_BlockCipherFactory*         block_cipher_factory,
+                             bool                            reset_iv_at_each_subsample,
                              AP4_CencSingleSampleDecrypter*& decrypter);
     
     // methods
     AP4_CencSingleSampleDecrypter(AP4_StreamCipher* cipher) :
         m_Cipher(cipher),
-        m_FullBlocksOnly(false),
-        m_CryptByteBlock(0),
-        m_SkipByteBlock(0) {}
+        m_FullBlocksOnly(false) {}
     virtual ~AP4_CencSingleSampleDecrypter();
     virtual AP4_Result DecryptSampleData(AP4_DataBuffer& data_in,
                                          AP4_DataBuffer& data_out,
@@ -593,21 +689,15 @@
     // constructor
     AP4_CencSingleSampleDecrypter(AP4_StreamCipher* cipher,
                                   bool              full_blocks_only,
-                                  unsigned int      crypt_byte_block,
-                                  unsigned int      skip_byte_block) :
+                                  bool              reset_iv_at_each_subsample) :
         m_Cipher(cipher),
         m_FullBlocksOnly(full_blocks_only),
-        m_CryptByteBlock(crypt_byte_block),
-        m_SkipByteBlock(skip_byte_block) {}
-
-    // methods
-    AP4_Result DecryptRange(unsigned int range_position, const AP4_UI08* in, AP4_UI08* out, AP4_Size size);
+        m_ResetIvAtEachSubsample(reset_iv_at_each_subsample) {}
 
     // members
     AP4_StreamCipher* m_Cipher;
     bool              m_FullBlocksOnly;
-    unsigned int      m_CryptByteBlock;
-    unsigned int      m_SkipByteBlock;
+    bool              m_ResetIvAtEachSubsample;
 };
 
 /*----------------------------------------------------------------------
@@ -642,6 +732,7 @@
                              const AP4_UI08*           key, 
                              AP4_Size                  key_size,
                              AP4_BlockCipherFactory*   block_cipher_factory,
+                             bool                      reset_iv_at_each_subsample,
                              AP4_CencSampleDecrypter*& decrypter);
     
     // methods

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4ElstAtom.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4ElstAtom.cpp Changed

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4FragmentSampleTable.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4FragmentSampleTable.cpp Changed

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4Piff.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4Piff.cpp Changed

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4SampleTable.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4SampleTable.cpp Changed

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4SencAtom.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4SencAtom.cpp Changed

@@ -85,6 +85,24 @@
 }
 
 /*----------------------------------------------------------------------
+|   AP4_SencAtom::AP4_SencAtom
++---------------------------------------------------------------------*/
+AP4_SencAtom::AP4_SencAtom(AP4_UI08        per_sample_iv_size,
+                           AP4_UI08        constant_iv_size,
+                           const AP4_UI08* constant_iv,
+                           AP4_UI08        crypt_byte_block,
+                           AP4_UI08        skip_byte_block):
+    AP4_Atom(AP4_ATOM_TYPE_SENC, AP4_FULL_ATOM_HEADER_SIZE+4, 0, 0),
+    AP4_CencSampleEncryption(*this,
+                             per_sample_iv_size,
+                             constant_iv_size,
+                             constant_iv,
+                             crypt_byte_block,
+                             skip_byte_block)
+{
+}
+
+/*----------------------------------------------------------------------
 |   AP4_SencAtom::WriteFields
 +---------------------------------------------------------------------*/
 AP4_Result

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4SencAtom.h -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4SencAtom.h Changed

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4TencAtom.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4TencAtom.cpp Changed

@@ -65,7 +65,8 @@
                            AP4_UI08        default_per_sample_iv_size,
                            const AP4_UI08* default_kid) :
     AP4_Atom(AP4_ATOM_TYPE_TENC, AP4_FULL_ATOM_HEADER_SIZE+20, 0, 0),
-    AP4_CencTrackEncryption(default_is_protected,
+    AP4_CencTrackEncryption(0,
+                            default_is_protected,
                             default_per_sample_iv_size,
                             default_kid)
 {
@@ -82,7 +83,8 @@
                            AP4_UI08        default_crypt_byte_block,
                            AP4_UI08        default_skip_byte_block) :
     AP4_Atom(AP4_ATOM_TYPE_TENC, AP4_FULL_ATOM_HEADER_SIZE+20+(default_per_sample_iv_size?0:1+default_constant_iv_size), 1, 0),
-    AP4_CencTrackEncryption(default_is_protected,
+    AP4_CencTrackEncryption(1,
+                            default_is_protected,
                             default_per_sample_iv_size,
                             default_kid,
                             default_constant_iv_size,

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4TfhdAtom.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4TfhdAtom.cpp Changed

bento4-1.5.0r614.tar.gz/Source/C++/Core/Ap4TfhdAtom.h -> bento4-1.5.0r615.tar.gz/Source/C++/Core/Ap4TfhdAtom.h Changed

bento4-1.5.0r614.tar.gz/Source/C++/Crypto/Ap4StreamCipher.cpp -> bento4-1.5.0r615.tar.gz/Source/C++/Crypto/Ap4StreamCipher.cpp Changed

@@ -519,3 +519,129 @@
         return DecryptBuffer(in, in_size, out, out_size, is_last_buffer);
     }
 }
+
+/*----------------------------------------------------------------------
+|   AP4_PatternStreamCipher
++---------------------------------------------------------------------*/
+AP4_PatternStreamCipher::AP4_PatternStreamCipher(AP4_StreamCipher* cipher,
+                                                 AP4_UI08          crypt_byte_block,
+                                                 AP4_UI08 skip_byte_block) :
+    m_Cipher(cipher),
+    m_CryptByteBlock(crypt_byte_block),
+    m_SkipByteBlock(skip_byte_block),
+    m_StreamOffset(0)
+{
+}
+
+/*----------------------------------------------------------------------
+|   AP4_PatternStreamCipher::~AP4_PatternStreamCipher
++---------------------------------------------------------------------*/
+AP4_PatternStreamCipher::~AP4_PatternStreamCipher()
+{
+    delete m_Cipher;
+}
+
+/*----------------------------------------------------------------------
+|   AP4_PatternStreamCipher::SetStreamOffset
++---------------------------------------------------------------------*/
+AP4_Result
+AP4_PatternStreamCipher::SetStreamOffset(AP4_UI64      /*offset*/,
+                                         AP4_Cardinal* /*preroll*/)
+{
+    return AP4_ERROR_NOT_SUPPORTED;
+}
+
+/*----------------------------------------------------------------------
+|   AP4_PatternStreamCipher
++---------------------------------------------------------------------*/
+AP4_Result
+AP4_PatternStreamCipher::ProcessBuffer(const AP4_UI08* in,
+                                       AP4_Size        in_size,
+                                       AP4_UI08*       out,
+                                       AP4_Size*       out_size,
+                                       bool            /* is_last_buffer */)
+{
+    // set default return values
+    *out_size = 0;
+    
+    // check that the range is block-aligned (required by the spec for pattern encryption)
+    if (m_StreamOffset % 16) return AP4_ERROR_INVALID_FORMAT;
+    
+    // compute where we are in the pattern
+    unsigned int pattern_span = m_CryptByteBlock+m_SkipByteBlock;
+    unsigned int block_position   = (unsigned int)(m_StreamOffset/16);
+    unsigned int pattern_position = block_position % pattern_span;
+
+    // process the range
+    while (*out_size < in_size) {
+        unsigned int crypt_size = 0;
+        unsigned int skip_size  = m_SkipByteBlock*16;
+        if (pattern_position < m_CryptByteBlock) {
+            // in the encrypted part
+            crypt_size = (m_CryptByteBlock-pattern_position)*16;
+        } else {
+            // in the skipped part
+            skip_size = pattern_span-pattern_position;
+        }
+        
+        // clip
+        AP4_Size remain = in_size-*out_size;
+        if (crypt_size > remain) {
+            crypt_size = 16*(remain/16);
+            skip_size  = remain-crypt_size;
+        }
+        if (crypt_size+skip_size > remain) {
+            skip_size = remain-crypt_size;
+        }
+        
+        // encrypted part
+        if (crypt_size) {
+            AP4_Size in_chunk_size  = crypt_size;
+            AP4_Size out_chunk_size = crypt_size;
+            
+            AP4_Result result = m_Cipher->ProcessBuffer(in, in_chunk_size, out, &out_chunk_size);
+            if (AP4_FAILED(result)) return result;
+            // check that we got back what we expectected
+            if (out_chunk_size != in_chunk_size) {
+                return AP4_ERROR_INTERNAL;
+            }
+            in             += crypt_size;
+            out            += crypt_size;
+            *out_size      += crypt_size;
+            m_StreamOffset += crypt_size;
+        }
+        
+        // skipped part
+        if (skip_size) {
+            AP4_CopyMemory(out, in, skip_size);
+            in             += skip_size;
+            out            += skip_size;
+            *out_size      += skip_size;
+            m_StreamOffset += skip_size;
+        }
+        
+        // we're now at the start of a new pattern
+        pattern_position = 0;
+    }
+
+    return AP4_SUCCESS;
+}
+
+/*----------------------------------------------------------------------
+|   AP4_PatternStreamCipher
++---------------------------------------------------------------------*/
+AP4_Result
+AP4_PatternStreamCipher::SetIV(const AP4_UI08* iv)
+{
+    m_StreamOffset = 0;
+    return m_Cipher->SetIV(iv);
+}
+
+/*----------------------------------------------------------------------
+|   AP4_PatternStreamCipher
++---------------------------------------------------------------------*/
+const AP4_UI08*
+AP4_PatternStreamCipher::GetIV()
+{
+    return m_Cipher->GetIV();
+}

bento4-1.5.0r614.tar.gz/Source/C++/Crypto/Ap4StreamCipher.h -> bento4-1.5.0r615.tar.gz/Source/C++/Crypto/Ap4StreamCipher.h Changed

@@ -165,4 +165,39 @@
                              bool            is_last_buffer);
 };
 
+/*----------------------------------------------------------------------
+|   AP4_PatternStreamCipher
++---------------------------------------------------------------------*/
+class AP4_PatternStreamCipher : public AP4_StreamCipher
+{
+public:
+    // methods
+
+    /**
+     * The stream cipher is passed with transfer of ownership (it will
+     * be destroyed when this object is destroyed).
+     */
+    AP4_PatternStreamCipher(AP4_StreamCipher* cipher, AP4_UI08 crypt_byte_block, AP4_UI08 skip_byte_block);
+    ~AP4_PatternStreamCipher();
+    
+    // AP4_StreamCipher implementation
+    virtual AP4_Result      SetStreamOffset(AP4_UI64      offset,
+                                            AP4_Cardinal* preroll);
+    virtual AP4_UI64        GetStreamOffset() { return m_StreamOffset; }
+    virtual AP4_Result      ProcessBuffer(const AP4_UI08* in,
+                                          AP4_Size        in_size,
+                                          AP4_UI08*       out,
+                                          AP4_Size*       out_size,
+                                          bool            is_last_buffer = false);
+    virtual AP4_Result      SetIV(const AP4_UI08* iv);
+    virtual const AP4_UI08* GetIV();
+
+private:
+    // members
+    AP4_StreamCipher* m_Cipher;
+    AP4_UI08          m_CryptByteBlock;
+    AP4_UI08          m_SkipByteBlock;
+    AP4_UI64          m_StreamOffset;
+};
+
 #endif // _AP4_STREAM_CIPHER_H_

bento4-1.5.0r614.tar.gz/Source/Python/utils/mp4-dash.py -> bento4-1.5.0r615.tar.gz/Source/Python/utils/mp4-dash.py Changed

@@ -22,12 +22,13 @@
 import re
 import platform
 import sys
+import math
 from mp4utils import *
 from subtitles import *
 
 # setup main options
-VERSION = "1.7.0"
-SDK_REVISION = '614'
+VERSION = "1.8.0"
+SDK_REVISION = '615'
 SCRIPT_PATH = path.abspath(path.dirname(__file__))
 sys.path += [SCRIPT_PATH]
 
@@ -106,6 +107,13 @@
 
 TempFiles = []
 
+MpegCencSchemeMap = {
+    'cenc': 'MPEG-CENC',
+    'cbc1': 'MPEG-CBC1',
+    'cens': 'MPEG-CENS',
+    'cbcs': 'MPEG-CBCS'
+}
+
 #############################################
 def AddSegmentList(options, container, subdir, track, use_byte_range=False):
     if subdir:
@@ -206,7 +214,7 @@
     kids = []
     for track in tracks:
         kid = track.kid
-        if kid is None:
+        if kid is None and not options.no_media:
             PrintErrorAndExit('ERROR: no encryption info found in track '+str(track))
         if kid not in kids:
             kids.append(kid)
@@ -227,7 +235,7 @@
     if options.eme_signaling in ['pssh-v0', 'pssh-v1']:
         container.append(xml.Comment(' EME Common Encryption '))
         xml.register_namespace('cenc', CENC_2013_NAMESPACE)
-        cp = xml.SubElement(container, 'ContentProtection', schemeIdUri=EME_COMMON_ENCRYPTION_SCHEME_ID_URI, value='cenc')
+        cp = xml.SubElement(container, 'ContentProtection', schemeIdUri=EME_COMMON_ENCRYPTION_SCHEME_ID_URI, value=options.encryption_cenc_scheme)
         if options.eme_signaling == 'pssh-v1':
             pssh_box = MakePsshBoxV1(EME_COMMON_ENCRYPTION_PSSH_SYSTEM_ID.decode('hex'), [default_kid], '')
         else:
@@ -239,7 +247,7 @@
     # MPEG Common Encryption
     container.append(xml.Comment(' MPEG Common Encryption '))
     xml.register_namespace('cenc', CENC_2013_NAMESPACE)
-    cp = xml.SubElement(container, 'ContentProtection', schemeIdUri=MPEG_COMMON_ENCRYPTION_SCHEME_ID_URI, value='cenc')
+    cp = xml.SubElement(container, 'ContentProtection', schemeIdUri=MPEG_COMMON_ENCRYPTION_SCHEME_ID_URI, value=options.encryption_cenc_scheme)
     default_kid_with_dashes = (default_kid[0:8]+'-'+default_kid[8:12]+'-'+default_kid[12:16]+'-'+default_kid[16:20]+'-'+default_kid[20:32]).lower()
     cp.set('{'+CENC_2013_NAMESPACE+'}default_KID', default_kid_with_dashes)
 
@@ -564,7 +572,7 @@
 
 #############################################
 def OutputHlsTrack(options, track, media_subdir, media_playlist_name, media_file_name):
-    hls_target_duration = 10
+    hls_target_duration = math.ceil(max(track.segment_durations))
 
     media_playlist_file = open(path.join(options.output_dir, media_subdir, media_playlist_name), 'w+')
     media_playlist_file.write('#EXTM3U\r\n')
@@ -582,6 +590,10 @@
         media_playlist_file.write('#EXT-X-MAP:URI="%s"\r\n' % (SPLIT_INIT_SEGMENT_NAME))
         segment_pattern = SEGMENT_PATTERN.replace('ll','')
 
+    if options.encryption_key:
+        key_info = options.track_key_infos.get(track.id)
+        media_playlist_file.write('#EXT-X-KEY:METHOD=SAMPLE-AES,URI="'+options.hls_key_url+'",IV=0x'+key_info['iv']+'\r\n')
+
     for i in range(len(track.segment_durations)):
         media_playlist_file.write('#EXTINF:%f,\r\n' % (track.segment_durations[i]))
         if options.on_demand:
@@ -618,8 +630,25 @@
         language_name = LanguageNames.get(language, language).decode('utf-8')
 
         audio_group_name = adaptation_set_name[0]+'/'+adaptation_set_name[2]
-        audio_groups[audio_group_name] = adaptation_set_name[2]
+        audio_groups[audio_group_name] = {
+            'codec': '',
+            'average_segment_bitrate': 0,
+            'max_segment_bitrate': 0
+        }
         for audio_track in audio_tracks:
+            # update the avergage and max bitrates
+            if audio_track.average_segment_bitrate > audio_groups[audio_group_name]['average_segment_bitrate']:
+                audio_groups[audio_group_name]['average_segment_bitrate'] = audio_track.average_segment_bitrate
+            if audio_track.max_segment_bitrate > audio_groups[audio_group_name]['max_segment_bitrate']:
+                audio_groups[audio_group_name]['max_segment_bitrate'] = audio_track.max_segment_bitrate
+
+            # update/check the codec
+            if audio_groups[audio_group_name]['codec'] == '':
+                audio_groups[audio_group_name]['codec'] = audio_track.codec
+            else:
+                if audio_groups[audio_group_name]['codec'] != audio_track.codec:
+                    print 'WARNING: audio codecs not all the same:', audio_groups[audio_group_name]['codec'], audio_track.codec
+
             if options.on_demand:
                 media_subdir        = ''
                 media_file_name     = audio_track.parent.media_name
@@ -662,16 +691,28 @@
                 raise Exception('mode not yet supported with HLS')
 
 
-        for audio_group_name in audio_groups:
-            audio_codec = audio_groups[audio_group_name]
-            master_playlist_file.write('#EXT-X-STREAM-INF:AUDIO="%s",AVERAGE-BANDWIDTH=%d,BANDWIDTH=%d,CODECS="%s",RESOLUTION=%dx%d\r\n' % (
-                                       audio_group_name,
+        if len(audio_groups):
+            # one entry per audio group
+            for audio_group_name in audio_groups:
+                audio_codec = audio_groups[audio_group_name]['codec']
+                master_playlist_file.write('#EXT-X-STREAM-INF:AUDIO="%s",AVERAGE-BANDWIDTH=%d,BANDWIDTH=%d,CODECS="%s",RESOLUTION=%dx%d\r\n' % (
+                                           audio_group_name,
+                                           video_track.average_segment_bitrate + audio_groups[audio_group_name]['average_segment_bitrate'],
+                                           video_track.max_segment_bitrate + audio_groups[audio_group_name]['max_segment_bitrate'],
+                                           video_track.codec+','+audio_codec,
+                                           video_track.width,
+                                           video_track.height))
+                master_playlist_file.write(media_playlist_path+'\r\n')
+        else:
+            # no audio
+            master_playlist_file.write('#EXT-X-STREAM-INF:AVERAGE-BANDWIDTH=%d,BANDWIDTH=%d,CODECS="%s",RESOLUTION=%dx%d\r\n' % (
                                        video_track.average_segment_bitrate,
                                        video_track.max_segment_bitrate,
-                                       video_track.codec+','+audio_codec,
+                                       video_track.codec,
                                        video_track.width,
                                        video_track.height))
             master_playlist_file.write(media_playlist_path+'\r\n')
+
         OutputHlsTrack(options, video_track, media_subdir, media_playlist_name, media_file_name)
 
 #############################################
@@ -1056,6 +1097,15 @@
 
         key_info['key'] = key_hex
         key_info['kid'] = kid_hex
+        if options.hls:
+            # for HLS, we need to know the IV
+            import random
+            sys_random = random.SystemRandom()
+            random_iv = sys_random.getrandbits(128)
+            key_info['iv'] = '%016x' % random_iv
+        else:
+            key_info['iv'] = 'random'
+
         options.key_infos.append(key_info)
 
 #############################################
@@ -1141,6 +1191,8 @@
                       help="Smooth Streaming FourCC value for H.264 video (default=H264) [some older players use AVC1]", metavar="<fourcc>", default='H264')
     parser.add_option('', '--hls', dest="hls", default=False, action="store_true",
                       help="Output HLS playlists in addition to MPEG DASH")
+    parser.add_option('', '--hls-key-url', dest="hls_key_url",
+                      help="HLS key URL (default: key.bin)", metavar="<url>", default='key.bin')
     parser.add_option('', '--hls-master-playlist-name', dest="hls_master_playlist_name",
                       help="HLS master playlist name (default: master.m3u8)", metavar="<filename>", default='master.m3u8')
     parser.add_option('', '--hls-media-playlist-name', dest="hls_media_playlist_name",
@@ -1157,6 +1209,8 @@
                       help="Encrypt some or all tracks with MPEG CENC (AES-128), where <key-spec> specifies the KID(s) and Key(s) to use, using one of the following forms: " +
                            "(1) <KID>:<key> with <KID> as a 32-character hex string and <key> either a 32-character hex string or the character '#' followed by a base64-encoded key seed; or " +
                            "(2) @<key-locator> where <key-locator> is an expression of one of the supported key locator schemes. Each entry may be prefixed with an optional track filter, and multiple <key-spec> entries can be used, separated by ','. (see online docs for details)")
+    parser.add_option('', "--encryption-cenc-scheme", dest="encryption_cenc_scheme", metavar='<cenc-scheme>', default='cenc', choices=('cenc', 'cbc1', 'cens', 'cbcs'),
+                      help="MPEG Common Encryption scheme (cenc, cbc1, cens or cbcs). (default: cenc)")
     parser.add_option('', "--encryption-args", dest="encryption_args", metavar='<cmdline-arguments>', default=None,
                       help="Pass additional command line arguments to mp4encrypt (separated by spaces)")
     parser.add_option('', "--eme-signaling", dest="eme_signaling", metavar='<eme-signaling-type>', choices=['pssh-v0', 'pssh-v1'],
@@ -1288,6 +1342,10 @@
     if options.primetime_metadata:
         options.primetime = True
 
+    if options.hls:
+        if options.encryption_key and options.encryption_cenc_scheme != 'cbcs':
+            raise Exception('--hls requires --encryption-cenc-scheme=cbcs')
+
     # compute the KID(s) and encryption key(s) if needed
     if options.encryption_key:
         ResolveEncryptionKeys(options)
@@ -1351,7 +1409,7 @@
             media_sources.append(media_source)
 
     # encrypt the input files if needed
-    if not options.no_media and options.encryption_key:
+    if options.encryption_key:
         encrypted_files = {}
         for media_source in media_sources:
             if media_source.format != 'mp4': continue
@@ -1382,6 +1440,11 @@
                     if track['type'].lower() in key_info['filter']:
                         options.track_key_infos[track['id']] = key_info
 
+            # skip now if we're only outputing the MPD
+            if options.no_media:
+                continue
+
+            # don't process any further if we won't have key material for this track
             if len(options.track_key_infos) == 0:
                 continue
 
@@ -1391,7 +1454,7 @@
             TempFiles.append(encrypted_file.name)
             encrypted_file.close() # necessary on Windows
             MapFileName(encrypted_file.name, path.basename(encrypted_file.name) + ' = Encrypted[' + GetMappedFileName(media_file) + ']')
-            args = ['--method', 'MPEG-CENC']
+            args = ['--method', MpegCencSchemeMap[options.encryption_cenc_scheme]]
 
             if options.encryption_args:
                 args += options.encryption_args.split()
@@ -1401,7 +1464,7 @@
 
             for track_id in sorted(options.track_key_infos.keys()):
                 key_info = options.track_key_infos[track_id]
-                args += ['--key', str(track_id)+':'+key_info['key']+':random', '--property', str(track_id)+':KID:'+key_info['kid']]
+                args += ['--key', str(track_id)+':'+key_info['key']+':'+key_info['iv'], '--property', str(track_id)+':KID:'+key_info['kid']]
 
             # EME Common Encryption / Clearkey
             if options.eme_signaling == 'pssh-v0':

bento4-1.5.0r614.tar.gz/Source/Python/utils/mp4-hls.py -> bento4-1.5.0r615.tar.gz/Source/Python/utils/mp4-hls.py Changed

bento4-1.5.0r614.tar.gz/Test/Bento4CryptoTester.py -> bento4-1.5.0r615.tar.gz/Test/Bento4CryptoTester.py Changed

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Aloysius created request almost 7 years ago

Aloysius accepted request almost 7 years ago